Your computer’s data is at risk. Whether you use a Mac or a PC, viruses, power surges, hackers, human error, natural disasters, hardware failures, and more are real everyday threats. To keep your data safe and sound, you will first need to back up your files on a regular basis. Secondly, when hard drive failure does occur, data recovery is the only solution.
Of course it is ideal to back up data and avoid the complicated process that is data recovery altogether, but even when you take the necessary steps to prepare for hard drive damage, you might run into problems.
Here are some procedures to follow if you experience trouble.
If a program is not functioning well on your computer, turn the computer off! This may seem a simple task, but shutting down a computer at the moment you notice your hard drive to be working overtime – perhaps you hear unusual sounds (like “cleaning”) – can prevent damage to the disk and data loss. If you let a failed hard drive run, it will eventually self-destruct. Damage to your disk is inevitable in this scenario.
If this is the case, unless you know exactly what you’re doing, don’t fix your computer yourself. Professional expertise is not a luxury in this situation – it is a must. Data recovery is a difficult and sensitive process requiring special tools and a clean environment. Not only will it be tremendously challenging to repair a hard drive on your own, but you might actually make matters worse and ensure irreversible data loss.
There is “do-it-yourself” data recovery software, but be cautious of things like this. With most computer problems of this nature, at-home instructions can be more dangerous than useful. Even if a company boasts that its products and instructions will handle your vulnerable data properly, it is important to be a skeptical consumer.
A local service provider is the average solution. Repair can happen on your own premises and you can be assured that your computer is in good hands. However, there is always the possibility that your hard drive is beyond repair – even for expert technicians – so be prepared to buy a new hard drive altogether; data recovery may not be an option any more.
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Home » Archives for November 2009
Avoiding Purchase of Stolen Computers
Most of us purchase used computers for the main reason that they can be purchased for a very lesser amount. When doing so, there is a high risk of purchasing a stolen computer, which can be passed off as a used computer. The incidence of purchasing a stolen computer is more when they are got in the name of used computers from third party computer dealers like the computer dealers online or from a theft store or from a pawnbroker who has no idea about the history of the computer he is selling.
Following measures can be taken to avoid buying a stolen computer:
One of the safe measures while buying used computer is to buy through a credit card or check payment rather than making cash purchase. If the seller insists on cash payment, the purchaser can be very sure that the computer may be a stolen one. Also stolen computers are sold at very low prices. If the buyer has good knowledge about the price trends of computers in the market, he can for sure find out if the computer sold as a used computer is of a genuine kind or not.
The place of buying used computer is of outmost importance as a reputed dealer or seller will have a well-established location. They do not sell on the streets. Hence, it is better to avoid buying used computers from the street side shops, which may be fly by night shops. Such sellers attract the buyers with the pricing or heavy discounts or even freebies along with the computers. If the buyer is not sure about the computer, he can very well ask for the documents pertaining to the computer or can find out if receipts are issued for the purchase. The best method of finding out is to check the serial number of the used computer that can be done with the help of the local law enforcement personnel.
The buyer has all the rights to ask the seller about the reason for the sale of the used computer, where it was purchased and nature of payment made initially. If the buyer is satisfied, he can go ahead with the purchase, else should move on to the next seller. Normally, one can find out if the seller is genuine or not through his body language.
A person selling illegal things will show frenzied movements, will agree even for a rock bottom price with even a small amount of profit for him, mostly will not have a decent language, will try to sell in haste, will always be looking around to find out if someone is watching him and will not have an eye contact while selling and so on.
Such kind of illegal sales of used computers happen as the illegal seller has the facility to advertise free of cost. Also posing as a private seller there is no need to provide a VAT receipt, which makes him free of any legal action being taken against him. Hence it is not advised to buy a used computer without a cash receipt provided by the seller.
Safex.org - Nutritional Health Blog
Innerdemonsmovie.com - Movie News
Mesothelioma-picture.com - Mesothelioma
Westernstreet7.com - Travel World Vacation
Following measures can be taken to avoid buying a stolen computer:
One of the safe measures while buying used computer is to buy through a credit card or check payment rather than making cash purchase. If the seller insists on cash payment, the purchaser can be very sure that the computer may be a stolen one. Also stolen computers are sold at very low prices. If the buyer has good knowledge about the price trends of computers in the market, he can for sure find out if the computer sold as a used computer is of a genuine kind or not.
The place of buying used computer is of outmost importance as a reputed dealer or seller will have a well-established location. They do not sell on the streets. Hence, it is better to avoid buying used computers from the street side shops, which may be fly by night shops. Such sellers attract the buyers with the pricing or heavy discounts or even freebies along with the computers. If the buyer is not sure about the computer, he can very well ask for the documents pertaining to the computer or can find out if receipts are issued for the purchase. The best method of finding out is to check the serial number of the used computer that can be done with the help of the local law enforcement personnel.
The buyer has all the rights to ask the seller about the reason for the sale of the used computer, where it was purchased and nature of payment made initially. If the buyer is satisfied, he can go ahead with the purchase, else should move on to the next seller. Normally, one can find out if the seller is genuine or not through his body language.
A person selling illegal things will show frenzied movements, will agree even for a rock bottom price with even a small amount of profit for him, mostly will not have a decent language, will try to sell in haste, will always be looking around to find out if someone is watching him and will not have an eye contact while selling and so on.
Such kind of illegal sales of used computers happen as the illegal seller has the facility to advertise free of cost. Also posing as a private seller there is no need to provide a VAT receipt, which makes him free of any legal action being taken against him. Hence it is not advised to buy a used computer without a cash receipt provided by the seller.
Safex.org - Nutritional Health Blog
Innerdemonsmovie.com - Movie News
Mesothelioma-picture.com - Mesothelioma
Westernstreet7.com - Travel World Vacation
Labels: cheap used computer, cheap used laptops, laptops, refurbished laptops, stolen computer, used computer, used computers, used laptops
Adware and Spyware Removers – A Beginner's Primer
The Internet is a vast resource of information and users all over the world are able to download whatever programs they see fit onto their computer. Unfortunately, having an open connection to the world also can be dangerous in today's online environment, particularly when you look at the rise of adware & spyware applications that can be downloaded onto your computer without you even knowing it.
You may have heard about spyware and adware from some of the tech geeks at work, but what does it actually mean to you? Surely, these kind of things only affect business computers and servers, right? Wrong. Spyware and adware can be downloaded onto any computer, regardless of whether you're at work or surfing the web at home. It doesn't even sometimes come from what you would think would be the most likely candidates: porn sites, gambling sites & other illegal material. The unfortunate part is that sometimes companies that we think to be reputable can actually be using spyware as well to track your every move.
Spyware and adware do not work like a typical virus. Normally they are not as malicious, but they can be just as annoying and incredibly difficult to get rid of. They usually end up appearing on your web browser as a new toolbar up on top, and/or triggering random pop-up ads at certain times. What's happening is these programs are being downloaded and keeping track of your information: the web sites you've been to, your search history in Google, Yahoo or another search engine....possibly even your passwords. They're also doing things that use up your computer's valuable resources or hijacking your homepage and switching it to some random search site automatically.
You can quickly see what a nuisance this can be, particularly if you end up having a lot of these programs downloaded to your computer. Such applications, when triggered almost simultanously, can cause you serious problems and a lot of time and effort in repair after the fact. Fortunately, however, there are many spyware removers and anti spyware programs that are available to you that you can download; some even have free trial versions. Nine times out of ten, they are very simple to use and can root out files and cookies on your computer that are associated with spyware.
That said, once you download one of these applications, you must be vigilant and remember to use the program on at least a weekly basis in order to avoid further outbreaks. It helps to download a spyware remover program that also contains an adware shield of some sort that is running in the background and blocks the download of a new piece of spyware before it occurs.
Also, be sure to always know what kind of a link you're clicking before you click on it, even if it is from someone you think you know. Usually, spam e-mails contain “click here” links that will download some piece of spyware, but your friend might send you a link on AIM or something without even knowing that it is a link to download spyware. These incidents are more common than you might think. Again, a spyware remover program that runs in the background can be of great help here.
If you know how to protect your computer from spyware before it gets downloaded, then you'll be much better off, and you'll be able to surf the web freely and safely without having to call up the PC tech place down the street to fix your computer for outrageous fees.
Safex.org - Nutritional Health Blog
Innerdemonsmovie.com - Movie News
Mesothelioma-picture.com - Mesothelioma
Westernstreet7.com - Travel World Vacation
You may have heard about spyware and adware from some of the tech geeks at work, but what does it actually mean to you? Surely, these kind of things only affect business computers and servers, right? Wrong. Spyware and adware can be downloaded onto any computer, regardless of whether you're at work or surfing the web at home. It doesn't even sometimes come from what you would think would be the most likely candidates: porn sites, gambling sites & other illegal material. The unfortunate part is that sometimes companies that we think to be reputable can actually be using spyware as well to track your every move.
Spyware and adware do not work like a typical virus. Normally they are not as malicious, but they can be just as annoying and incredibly difficult to get rid of. They usually end up appearing on your web browser as a new toolbar up on top, and/or triggering random pop-up ads at certain times. What's happening is these programs are being downloaded and keeping track of your information: the web sites you've been to, your search history in Google, Yahoo or another search engine....possibly even your passwords. They're also doing things that use up your computer's valuable resources or hijacking your homepage and switching it to some random search site automatically.
You can quickly see what a nuisance this can be, particularly if you end up having a lot of these programs downloaded to your computer. Such applications, when triggered almost simultanously, can cause you serious problems and a lot of time and effort in repair after the fact. Fortunately, however, there are many spyware removers and anti spyware programs that are available to you that you can download; some even have free trial versions. Nine times out of ten, they are very simple to use and can root out files and cookies on your computer that are associated with spyware.
That said, once you download one of these applications, you must be vigilant and remember to use the program on at least a weekly basis in order to avoid further outbreaks. It helps to download a spyware remover program that also contains an adware shield of some sort that is running in the background and blocks the download of a new piece of spyware before it occurs.
Also, be sure to always know what kind of a link you're clicking before you click on it, even if it is from someone you think you know. Usually, spam e-mails contain “click here” links that will download some piece of spyware, but your friend might send you a link on AIM or something without even knowing that it is a link to download spyware. These incidents are more common than you might think. Again, a spyware remover program that runs in the background can be of great help here.
If you know how to protect your computer from spyware before it gets downloaded, then you'll be much better off, and you'll be able to surf the web freely and safely without having to call up the PC tech place down the street to fix your computer for outrageous fees.
Safex.org - Nutritional Health Blog
Innerdemonsmovie.com - Movie News
Mesothelioma-picture.com - Mesothelioma
Westernstreet7.com - Travel World Vacation
Labels: anti spyware, Spyware, Spyware Removers
How To Find Your IP Address . DNS Address . IPv4 . IPv6
IP address
(Internet Protocol address) is a unique address that certain electronic devices use in order to identify and communicate with each other on a computer network utilizing the Internet Protocol standard (IP)—in simpler terms, a computer address. Any participating network device—including routers, computers, time-servers, printers, Internet fax machines, and some telephones—can have their own unique address.
An IP address can also be thought of as the equivalent of a street address or a phone number ( compare: VoIP (voice over (the) internet protocol)) for a computer or other network device on the Internet. Just as each street address and phone number uniquely identifies a building or telephone, an IP address can uniquely identify a specific computer or other network device on a network. An IP address differs from other contact information, however, because the linkage of a user's IP address to his/her name is not publicly available information.
IP addresses can appear to be shared by multiple client devices either because they are part of a shared hosting web server environment or because a network address translator (NAT) or proxy server acts as an intermediary agent on behalf of its customers, in which case the real originating IP addresses might be hidden from the server receiving a request. A common practice is to have a NAT hide a large number of IP addresses, in the private address space defined by RFC 1918, an address block that cannot be routed on the public Internet. Only the "outside" interface(s) of the NAT need to have Internet-routable addresses.
Most commonly, the NAT device maps TCP or UDP port numbers on the outside to individual private addresses on the inside. Just as there may be site-specific extensions on a telephone number, the port numbers are site-specific extensions to an IP address.
IP addresses are managed and created by the Internet Assigned Numbers Authority (IANA). The IANA generally allocates super-blocks to Regional Internet Registries, who in turn allocate smaller blocks to Internet service providers and enterprises.
DNS Address:
On the Internet, the Domain Name System (DNS) associates various sorts of information with so-called domain names; most importantly, it serves as the "phone book" for the Internet: it translates human-readable computer hostnames, e.g. en.wikipedia.org, into the IP addresses that networking equipment needs for delivering information. It also stores other information such as the list of mail exchange servers that accept email for a given domain. In providing a worldwide keyword-based redirection service, the Domain Name System is an essential component of contemporary Internet use.
Uses :
The most basic use of DNS is to translate hostnames to IP addresses. It is in very simple terms like a phone book. For example, if you want to know the internet address of en.wikipedia.org, the Domain Name System can be used to tell you it is 66.230.200.100. DNS also has other important uses.
Pre-eminently, DNS makes it possible to assign Internet destinations to the human organization or concern they represent, independently of the physical routing hierarchy represented by the numerical IP address. Because of this, hyperlinks and Internet contact information can remain the same, whatever the current IP routing arrangements may be, and can take a human-readable form (such as "wikipedia.org") which is rather easier to remember than an IP address (such as 66.230.200.100). People take advantage of this when they recite meaningful URLs and e-mail addresses without caring how the machine will actually locate them.
The Domain Name System distributes the responsibility for assigning domain names and mapping them to IP networks by allowing an authoritative server for each domain to keep track of its own changes, avoiding the need for a central registrar to be continually consulted and
History :
The practice of using a name as a more human-legible abstraction of a machine's numerical address on the network predates even TCP/IP, and goes all the way to the ARPAnet era. Back then however, a different system was used, as DNS was only invented in 1983, shortly after TCP/IP was deployed. With the older system, each computer on the network retrieved a file called HOSTS.TXT from a computer at SRI (now SRI International). The HOSTS.TXT file mapped numerical addresses to names. A hosts file still exists on most modern operating systems, either by default or through configuration, and allows users to specify an IP address (eg. 192.0.34.166) to use for a hostname (eg. www.example.net) without checking DNS. As of 2006, the hosts file serves primarily for troubleshooting DNS errors or for mapping local addresses to more organic names. Systems based on a hosts file have inherent limitations, because of the obvious requirement that every time a given computer's address changed, every computer that seeks to communicate with it would need an update to its hosts file.
The growth of networking called for a more scalable system: one that recorded a change in a host's address in one place only. Other hosts would learn about the change dynamically through a notification system, thus completing a globally accessible network of all hosts' names and their associated IP Addresses.
At the request of Jon Postel, Paul Mockapetris invented the Domain Name System in 1983 and wrote the first implementation. The original specifications appear in RFC 882 and 883. In 1987, the publication of RFC 1034 and RFC 1035 updated the DNS specification and made RFC 882 and RFC 883 obsolete. Several more-recent RFCs have proposed various extensions to the core DNS protocols.
In 1984, four Berkeley students — Douglas Terry, Mark Painter, David Riggle and Songnian Zhou — wrote the first UNIX implementation, which was maintained by Ralph Campbell thereafter. In 1985, Kevin Dunlap of DEC significantly re-wrote the DNS implementation and renamed it BIND (Berkeley Internet Name Domain, previously: Berkeley Internet Name Daemon). Mike Karels, Phil Almquist and Paul Vixie have maintained BIND since then. BIND was ported to the Windows NT platform in the early 1990s.
Due to BIND's long history of security issues and exploits, several alternative nameserver/resolver programs have been written and distributed in recent years.
How DNS Work In The Theory :
The domain name space consists of a tree of domain names. Each node or branch in the tree has one or more resource records, which hold information associated with the domain name. The tree sub-divides into zones. A zone consists of a collection of connected nodes authoritatively served by an authoritative DNS nameserver. (Note that a single nameserver can host several zones.)
When a system administrator wants to let another administrator control a part of the domain name space within his or her zone of authority, he or she can delegate control to the other administrator. This splits a part of the old zone off into a new zone, which comes under the authority of the second administrator's nameservers. The old zone becomes no longer authoritative for what goes under the authority of the new zone.
A resolver looks up the information associated with nodes. A resolver knows how to communicate with name servers by sending DNS requests, and heeding DNS responses. Resolving usually entails iterating through several name servers to find the needed information.
Some resolvers function simplistically and can only communicate with a single name server. These simple resolvers rely on a recursing name server to perform the work of finding information for them.
IPv4:
Internet Protocol version 4 is the fourth iteration of the Internet Protocol (IP) and it is the first version of the protocol to be widely deployed. IPv4 is the dominant network layer protocol on the Internet and apart from IPv6 it is the only protocol used on the Internet.
It is described in IETF RFC 791 (September 1981) which made obsolete RFC 760 (January 1980). The United States Department of Defense also standardized it as MIL-STD-1777.
IPv4 is a data-oriented protocol to be used on a packet switched internetwork (e.g., Ethernet). It is a best effort protocol in that it does not guarantee delivery. It does not make any guarantees on the correctness of the data; It may result in duplicated packets and/or packets out-of-order. These aspects are addressed by an upper layer protocol (e.g., TCP, and partly by UDP).
The entire purpose of IP is to provide unique global computer addressing to ensure that two computers communicating over the Internet can uniquely identify one another.
Addressing :
IPv4 uses 32-bit (4-byte) addresses, which limits the address space to 4,294,967,296 possible unique addresses. However, some are reserved for special purposes such as private networks (~18 million addresses) or multicast addresses (~1 million addresses). This reduces the number of addresses that can be allocated as public Internet addresses. As the number of addresses available are consumed, an IPv4 address shortage appears to be inevitable, however Network Address Translation (NAT) has significantly delayed this inevitability.
This limitation has helped stimulate the push towards IPv6, which is currently in the early stages of deployment and is currently the only contender to replace IPv4.
Allocation :
Originally, the IP address was divided into two parts:
* Network id : first octet
* Host id : last three octets
This created an upper limit of 256 networks. As the networks began to be allocated, this was soon seen to be inadequate.
To overcome this limit, different classes of network were defined, in a system which later became known as classful networking. Five classes were created (A, B, C, D, & E), three of which (A, B, & C) had different lengths for the network field. The rest of the address field in these three classes was used to identify a host on that network, which meant that each network class had a different maximum number of hosts. Thus there were a few networks with lots of host addresses and numerous networks with only a few addresses. Class D was for multicast addresses and class E was reserved.
Around 1993, these classes were replaced with a Classless Inter-Domain Routing (CIDR) scheme, and the previous scheme was dubbed "classful", by contrast. CIDR's primary advantage is to allow re-division of Class A, B & C networks so that smaller (or larger) blocks of addresses may be allocated to entities (such as Internet service providers, or their customers) or Local Area Networks.
The actual assignment of an address is not arbitrary. The fundamental principle of routing is that address encodes information about a device's location within a network. This implies that an address assigned to one part of a network will not function in another part of the network. A hierarchical structure, created by CIDR and overseen by the Internet Assigned Numbers Authority (IANA) and its Regional Internet Registries (RIRs), manages the assignment of Internet address worldwide. Each RIR maintains a publicly searchable WHOIS database that provides information about IP address assignments; information from these databases plays a central role in numerous tools that attempt to locate IP addresses geographically.
IPv6:
Internet Protocol version 6 (IPv6) is a network layer protocol for packet-switched internetworks. It is designated as the successor of IPv4, the current version of the Internet Protocol, for general use on the Internet.
The main improvement brought by IPv6 is a much larger address space that allows greater flexibility in assigning addresses. While IPv6 could support 2128 (about 3.4׳1038) addresses, or approximately 5׳1028 addresses for each of the roughly 6.5 billion people[1] alive today. It was not the intention of IPv6 designers, however, to give permanent unique addresses to every individual and every computer. Rather, the extended address length eliminates the need to use network address translation to avoid address exhaustion, and also simplifies aspects of address assignment and renumbering when changing providers.
Introduction :
By the early 1990s, it was clear that the change to a classless network introduced a decade earlier was not enough to prevent IPv4 address exhaustion and that further changes to IPv4 were needed.[2] By the winter of 1992, several proposed systems were being circulated and by the fall of 1993, the IETF announced a call for white papers (RFC 1550) and the creation of the "IP, the Next Generation" (IPng Area) of working groups.[2][3]
IPng was adopted by the Internet Engineering Task Force on July 25, 1994 with the formation of several "IP Next Generation" (IPng) working groups.[2] By 1996, a series of RFCs were released defining IPv6, starting with RFC 2460. (Incidentally, IPv5 was not a successor to IPv4, but an experimental flow-oriented streaming protocol intended to support video and audio.)
It is expected that IPv4 will be supported alongside IPv6 for the foreseeable future. IPv4-only nodes (clients or servers) will not be able to communicate directly with IPv6 nodes, and will need to go through an intermediary
Features of IPv6 :
[edit] To a great extent, IPv6 is a conservative extension of IPv4. Most transport- and application-layer protocols need little or no change to work over IPv6; exceptions are applications protocols that embed network-layer addresses (such as FTP or NTPv3).
Applications, however, usually need small changes and a recompile in order to run over IPv6.
Larger address space :
The main feature of IPv6 that is driving adoption today is the larger address space: addresses in IPv6 are 128 bits long versus 32 bits in IPv4.
The larger address space avoids the potential exhaustion of the IPv4 address space without the need for network address translation (NAT) and other devices that break the end-to-end nature of Internet traffic. NAT may still be necessary in rare cases, but Internet engineers recognize that it will be difficult in IPv6 and are trying to avoid it whenever possible. It also makes administration of medium and large networks simpler, by avoiding the need for complex subnetting schemes. Subnetting will, ideally, revert to its purpose of logical segmentation of an IP network for optimal routing and access.
The drawback of the large address size is that IPv6 carries some bandwidth overhead over IPv4, which may hurt regions where bandwidth is limited (header compression can sometimes be used to alleviate this problem). IPv6 addresses are harder to memorize than IPv4 addresses, although even IPv4 addresses are much harder to memorize than Domain Name System (DNS) names. DNS protocols have been modified to support IPv6 as well as IPv4.
Stateless auto configuration of hosts :
IPv6 hosts can be configured automatically when connected to a routed IPv6 network. When first connected to a network, a host sends a link-local multicast request for its configuration parameters; if configured suitably, routers respond to such a request with a router advertisement packet that contains network-layer configuration parameters.
If IPv6 autoconfiguration is not suitable, a host can use stateful autoconfiguration (DHCPv6) or be configured manually. Stateless autoconfiguration is only suitable for hosts: routers must be configured manually or by other means
IPv6 scope :
IPv6 defines 3 unicast address scopes: global, site, and link.
Site-local addresses are non-link-local addresses that are valid within the scope of an administratively-defined site and cannot be exported beyond it.
Companion IPv6 specifications further define that only link-local addresses can be used when generating ICMP Redirect Messages [ND] and as next-hop addresses in most routing protocols.
These restrictions do imply that an IPv6 router must have a link-local next-hop address for all directly connected routes (routes for which the given router and the next-hop router share a common subnet prefix).
Safex.org - Nutritional Health Blog
Innerdemonsmovie.com - Movie News
Mesothelioma-picture.com - Mesothelioma
Westernstreet7.com - Travel World Vacation
(Internet Protocol address) is a unique address that certain electronic devices use in order to identify and communicate with each other on a computer network utilizing the Internet Protocol standard (IP)—in simpler terms, a computer address. Any participating network device—including routers, computers, time-servers, printers, Internet fax machines, and some telephones—can have their own unique address.
An IP address can also be thought of as the equivalent of a street address or a phone number ( compare: VoIP (voice over (the) internet protocol)) for a computer or other network device on the Internet. Just as each street address and phone number uniquely identifies a building or telephone, an IP address can uniquely identify a specific computer or other network device on a network. An IP address differs from other contact information, however, because the linkage of a user's IP address to his/her name is not publicly available information.
IP addresses can appear to be shared by multiple client devices either because they are part of a shared hosting web server environment or because a network address translator (NAT) or proxy server acts as an intermediary agent on behalf of its customers, in which case the real originating IP addresses might be hidden from the server receiving a request. A common practice is to have a NAT hide a large number of IP addresses, in the private address space defined by RFC 1918, an address block that cannot be routed on the public Internet. Only the "outside" interface(s) of the NAT need to have Internet-routable addresses.
Most commonly, the NAT device maps TCP or UDP port numbers on the outside to individual private addresses on the inside. Just as there may be site-specific extensions on a telephone number, the port numbers are site-specific extensions to an IP address.
IP addresses are managed and created by the Internet Assigned Numbers Authority (IANA). The IANA generally allocates super-blocks to Regional Internet Registries, who in turn allocate smaller blocks to Internet service providers and enterprises.
DNS Address:
On the Internet, the Domain Name System (DNS) associates various sorts of information with so-called domain names; most importantly, it serves as the "phone book" for the Internet: it translates human-readable computer hostnames, e.g. en.wikipedia.org, into the IP addresses that networking equipment needs for delivering information. It also stores other information such as the list of mail exchange servers that accept email for a given domain. In providing a worldwide keyword-based redirection service, the Domain Name System is an essential component of contemporary Internet use.
Uses :
The most basic use of DNS is to translate hostnames to IP addresses. It is in very simple terms like a phone book. For example, if you want to know the internet address of en.wikipedia.org, the Domain Name System can be used to tell you it is 66.230.200.100. DNS also has other important uses.
Pre-eminently, DNS makes it possible to assign Internet destinations to the human organization or concern they represent, independently of the physical routing hierarchy represented by the numerical IP address. Because of this, hyperlinks and Internet contact information can remain the same, whatever the current IP routing arrangements may be, and can take a human-readable form (such as "wikipedia.org") which is rather easier to remember than an IP address (such as 66.230.200.100). People take advantage of this when they recite meaningful URLs and e-mail addresses without caring how the machine will actually locate them.
The Domain Name System distributes the responsibility for assigning domain names and mapping them to IP networks by allowing an authoritative server for each domain to keep track of its own changes, avoiding the need for a central registrar to be continually consulted and
History :
The practice of using a name as a more human-legible abstraction of a machine's numerical address on the network predates even TCP/IP, and goes all the way to the ARPAnet era. Back then however, a different system was used, as DNS was only invented in 1983, shortly after TCP/IP was deployed. With the older system, each computer on the network retrieved a file called HOSTS.TXT from a computer at SRI (now SRI International). The HOSTS.TXT file mapped numerical addresses to names. A hosts file still exists on most modern operating systems, either by default or through configuration, and allows users to specify an IP address (eg. 192.0.34.166) to use for a hostname (eg. www.example.net) without checking DNS. As of 2006, the hosts file serves primarily for troubleshooting DNS errors or for mapping local addresses to more organic names. Systems based on a hosts file have inherent limitations, because of the obvious requirement that every time a given computer's address changed, every computer that seeks to communicate with it would need an update to its hosts file.
The growth of networking called for a more scalable system: one that recorded a change in a host's address in one place only. Other hosts would learn about the change dynamically through a notification system, thus completing a globally accessible network of all hosts' names and their associated IP Addresses.
At the request of Jon Postel, Paul Mockapetris invented the Domain Name System in 1983 and wrote the first implementation. The original specifications appear in RFC 882 and 883. In 1987, the publication of RFC 1034 and RFC 1035 updated the DNS specification and made RFC 882 and RFC 883 obsolete. Several more-recent RFCs have proposed various extensions to the core DNS protocols.
In 1984, four Berkeley students — Douglas Terry, Mark Painter, David Riggle and Songnian Zhou — wrote the first UNIX implementation, which was maintained by Ralph Campbell thereafter. In 1985, Kevin Dunlap of DEC significantly re-wrote the DNS implementation and renamed it BIND (Berkeley Internet Name Domain, previously: Berkeley Internet Name Daemon). Mike Karels, Phil Almquist and Paul Vixie have maintained BIND since then. BIND was ported to the Windows NT platform in the early 1990s.
Due to BIND's long history of security issues and exploits, several alternative nameserver/resolver programs have been written and distributed in recent years.
How DNS Work In The Theory :
The domain name space consists of a tree of domain names. Each node or branch in the tree has one or more resource records, which hold information associated with the domain name. The tree sub-divides into zones. A zone consists of a collection of connected nodes authoritatively served by an authoritative DNS nameserver. (Note that a single nameserver can host several zones.)
When a system administrator wants to let another administrator control a part of the domain name space within his or her zone of authority, he or she can delegate control to the other administrator. This splits a part of the old zone off into a new zone, which comes under the authority of the second administrator's nameservers. The old zone becomes no longer authoritative for what goes under the authority of the new zone.
A resolver looks up the information associated with nodes. A resolver knows how to communicate with name servers by sending DNS requests, and heeding DNS responses. Resolving usually entails iterating through several name servers to find the needed information.
Some resolvers function simplistically and can only communicate with a single name server. These simple resolvers rely on a recursing name server to perform the work of finding information for them.
IPv4:
Internet Protocol version 4 is the fourth iteration of the Internet Protocol (IP) and it is the first version of the protocol to be widely deployed. IPv4 is the dominant network layer protocol on the Internet and apart from IPv6 it is the only protocol used on the Internet.
It is described in IETF RFC 791 (September 1981) which made obsolete RFC 760 (January 1980). The United States Department of Defense also standardized it as MIL-STD-1777.
IPv4 is a data-oriented protocol to be used on a packet switched internetwork (e.g., Ethernet). It is a best effort protocol in that it does not guarantee delivery. It does not make any guarantees on the correctness of the data; It may result in duplicated packets and/or packets out-of-order. These aspects are addressed by an upper layer protocol (e.g., TCP, and partly by UDP).
The entire purpose of IP is to provide unique global computer addressing to ensure that two computers communicating over the Internet can uniquely identify one another.
Addressing :
IPv4 uses 32-bit (4-byte) addresses, which limits the address space to 4,294,967,296 possible unique addresses. However, some are reserved for special purposes such as private networks (~18 million addresses) or multicast addresses (~1 million addresses). This reduces the number of addresses that can be allocated as public Internet addresses. As the number of addresses available are consumed, an IPv4 address shortage appears to be inevitable, however Network Address Translation (NAT) has significantly delayed this inevitability.
This limitation has helped stimulate the push towards IPv6, which is currently in the early stages of deployment and is currently the only contender to replace IPv4.
Allocation :
Originally, the IP address was divided into two parts:
* Network id : first octet
* Host id : last three octets
This created an upper limit of 256 networks. As the networks began to be allocated, this was soon seen to be inadequate.
To overcome this limit, different classes of network were defined, in a system which later became known as classful networking. Five classes were created (A, B, C, D, & E), three of which (A, B, & C) had different lengths for the network field. The rest of the address field in these three classes was used to identify a host on that network, which meant that each network class had a different maximum number of hosts. Thus there were a few networks with lots of host addresses and numerous networks with only a few addresses. Class D was for multicast addresses and class E was reserved.
Around 1993, these classes were replaced with a Classless Inter-Domain Routing (CIDR) scheme, and the previous scheme was dubbed "classful", by contrast. CIDR's primary advantage is to allow re-division of Class A, B & C networks so that smaller (or larger) blocks of addresses may be allocated to entities (such as Internet service providers, or their customers) or Local Area Networks.
The actual assignment of an address is not arbitrary. The fundamental principle of routing is that address encodes information about a device's location within a network. This implies that an address assigned to one part of a network will not function in another part of the network. A hierarchical structure, created by CIDR and overseen by the Internet Assigned Numbers Authority (IANA) and its Regional Internet Registries (RIRs), manages the assignment of Internet address worldwide. Each RIR maintains a publicly searchable WHOIS database that provides information about IP address assignments; information from these databases plays a central role in numerous tools that attempt to locate IP addresses geographically.
IPv6:
Internet Protocol version 6 (IPv6) is a network layer protocol for packet-switched internetworks. It is designated as the successor of IPv4, the current version of the Internet Protocol, for general use on the Internet.
The main improvement brought by IPv6 is a much larger address space that allows greater flexibility in assigning addresses. While IPv6 could support 2128 (about 3.4׳1038) addresses, or approximately 5׳1028 addresses for each of the roughly 6.5 billion people[1] alive today. It was not the intention of IPv6 designers, however, to give permanent unique addresses to every individual and every computer. Rather, the extended address length eliminates the need to use network address translation to avoid address exhaustion, and also simplifies aspects of address assignment and renumbering when changing providers.
Introduction :
By the early 1990s, it was clear that the change to a classless network introduced a decade earlier was not enough to prevent IPv4 address exhaustion and that further changes to IPv4 were needed.[2] By the winter of 1992, several proposed systems were being circulated and by the fall of 1993, the IETF announced a call for white papers (RFC 1550) and the creation of the "IP, the Next Generation" (IPng Area) of working groups.[2][3]
IPng was adopted by the Internet Engineering Task Force on July 25, 1994 with the formation of several "IP Next Generation" (IPng) working groups.[2] By 1996, a series of RFCs were released defining IPv6, starting with RFC 2460. (Incidentally, IPv5 was not a successor to IPv4, but an experimental flow-oriented streaming protocol intended to support video and audio.)
It is expected that IPv4 will be supported alongside IPv6 for the foreseeable future. IPv4-only nodes (clients or servers) will not be able to communicate directly with IPv6 nodes, and will need to go through an intermediary
Features of IPv6 :
[edit] To a great extent, IPv6 is a conservative extension of IPv4. Most transport- and application-layer protocols need little or no change to work over IPv6; exceptions are applications protocols that embed network-layer addresses (such as FTP or NTPv3).
Applications, however, usually need small changes and a recompile in order to run over IPv6.
Larger address space :
The main feature of IPv6 that is driving adoption today is the larger address space: addresses in IPv6 are 128 bits long versus 32 bits in IPv4.
The larger address space avoids the potential exhaustion of the IPv4 address space without the need for network address translation (NAT) and other devices that break the end-to-end nature of Internet traffic. NAT may still be necessary in rare cases, but Internet engineers recognize that it will be difficult in IPv6 and are trying to avoid it whenever possible. It also makes administration of medium and large networks simpler, by avoiding the need for complex subnetting schemes. Subnetting will, ideally, revert to its purpose of logical segmentation of an IP network for optimal routing and access.
The drawback of the large address size is that IPv6 carries some bandwidth overhead over IPv4, which may hurt regions where bandwidth is limited (header compression can sometimes be used to alleviate this problem). IPv6 addresses are harder to memorize than IPv4 addresses, although even IPv4 addresses are much harder to memorize than Domain Name System (DNS) names. DNS protocols have been modified to support IPv6 as well as IPv4.
Stateless auto configuration of hosts :
IPv6 hosts can be configured automatically when connected to a routed IPv6 network. When first connected to a network, a host sends a link-local multicast request for its configuration parameters; if configured suitably, routers respond to such a request with a router advertisement packet that contains network-layer configuration parameters.
If IPv6 autoconfiguration is not suitable, a host can use stateful autoconfiguration (DHCPv6) or be configured manually. Stateless autoconfiguration is only suitable for hosts: routers must be configured manually or by other means
IPv6 scope :
IPv6 defines 3 unicast address scopes: global, site, and link.
Site-local addresses are non-link-local addresses that are valid within the scope of an administratively-defined site and cannot be exported beyond it.
Companion IPv6 specifications further define that only link-local addresses can be used when generating ICMP Redirect Messages [ND] and as next-hop addresses in most routing protocols.
These restrictions do imply that an IPv6 router must have a link-local next-hop address for all directly connected routes (routes for which the given router and the next-hop router share a common subnet prefix).
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Labels: dns, dns address, how to find my ip, ip address, ip trace, ipv4, ipv6 address, my ip, myip
How To Find Your IP Address . DNS Address . IPv4 . IPv6
IP address
(Internet Protocol address) is a unique address that certain electronic devices use in order to identify and communicate with each other on a computer network utilizing the Internet Protocol standard (IP)—in simpler terms, a computer address. Any participating network device—including routers, computers, time-servers, printers, Internet fax machines, and some telephones—can have their own unique address.
An IP address can also be thought of as the equivalent of a street address or a phone number ( compare: VoIP (voice over (the) internet protocol)) for a computer or other network device on the Internet. Just as each street address and phone number uniquely identifies a building or telephone, an IP address can uniquely identify a specific computer or other network device on a network. An IP address differs from other contact information, however, because the linkage of a user's IP address to his/her name is not publicly available information.
IP addresses can appear to be shared by multiple client devices either because they are part of a shared hosting web server environment or because a network address translator (NAT) or proxy server acts as an intermediary agent on behalf of its customers, in which case the real originating IP addresses might be hidden from the server receiving a request. A common practice is to have a NAT hide a large number of IP addresses, in the private address space defined by RFC 1918, an address block that cannot be routed on the public Internet. Only the "outside" interface(s) of the NAT need to have Internet-routable addresses.
Most commonly, the NAT device maps TCP or UDP port numbers on the outside to individual private addresses on the inside. Just as there may be site-specific extensions on a telephone number, the port numbers are site-specific extensions to an IP address.
IP addresses are managed and created by the Internet Assigned Numbers Authority (IANA). The IANA generally allocates super-blocks to Regional Internet Registries, who in turn allocate smaller blocks to Internet service providers and enterprises.
DNS Address:
On the Internet, the Domain Name System (DNS) associates various sorts of information with so-called domain names; most importantly, it serves as the "phone book" for the Internet: it translates human-readable computer hostnames, e.g. en.wikipedia.org, into the IP addresses that networking equipment needs for delivering information. It also stores other information such as the list of mail exchange servers that accept email for a given domain. In providing a worldwide keyword-based redirection service, the Domain Name System is an essential component of contemporary Internet use.
Uses :
The most basic use of DNS is to translate hostnames to IP addresses. It is in very simple terms like a phone book. For example, if you want to know the internet address of en.wikipedia.org, the Domain Name System can be used to tell you it is 66.230.200.100. DNS also has other important uses.
Pre-eminently, DNS makes it possible to assign Internet destinations to the human organization or concern they represent, independently of the physical routing hierarchy represented by the numerical IP address. Because of this, hyperlinks and Internet contact information can remain the same, whatever the current IP routing arrangements may be, and can take a human-readable form (such as "wikipedia.org") which is rather easier to remember than an IP address (such as 66.230.200.100). People take advantage of this when they recite meaningful URLs and e-mail addresses without caring how the machine will actually locate them.
The Domain Name System distributes the responsibility for assigning domain names and mapping them to IP networks by allowing an authoritative server for each domain to keep track of its own changes, avoiding the need for a central registrar to be continually consulted and
History :
The practice of using a name as a more human-legible abstraction of a machine's numerical address on the network predates even TCP/IP, and goes all the way to the ARPAnet era. Back then however, a different system was used, as DNS was only invented in 1983, shortly after TCP/IP was deployed. With the older system, each computer on the network retrieved a file called HOSTS.TXT from a computer at SRI (now SRI International). The HOSTS.TXT file mapped numerical addresses to names. A hosts file still exists on most modern operating systems, either by default or through configuration, and allows users to specify an IP address (eg. 192.0.34.166) to use for a hostname (eg. www.example.net) without checking DNS. As of 2006, the hosts file serves primarily for troubleshooting DNS errors or for mapping local addresses to more organic names. Systems based on a hosts file have inherent limitations, because of the obvious requirement that every time a given computer's address changed, every computer that seeks to communicate with it would need an update to its hosts file.
The growth of networking called for a more scalable system: one that recorded a change in a host's address in one place only. Other hosts would learn about the change dynamically through a notification system, thus completing a globally accessible network of all hosts' names and their associated IP Addresses.
At the request of Jon Postel, Paul Mockapetris invented the Domain Name System in 1983 and wrote the first implementation. The original specifications appear in RFC 882 and 883. In 1987, the publication of RFC 1034 and RFC 1035 updated the DNS specification and made RFC 882 and RFC 883 obsolete. Several more-recent RFCs have proposed various extensions to the core DNS protocols.
In 1984, four Berkeley students — Douglas Terry, Mark Painter, David Riggle and Songnian Zhou — wrote the first UNIX implementation, which was maintained by Ralph Campbell thereafter. In 1985, Kevin Dunlap of DEC significantly re-wrote the DNS implementation and renamed it BIND (Berkeley Internet Name Domain, previously: Berkeley Internet Name Daemon). Mike Karels, Phil Almquist and Paul Vixie have maintained BIND since then. BIND was ported to the Windows NT platform in the early 1990s.
Due to BIND's long history of security issues and exploits, several alternative nameserver/resolver programs have been written and distributed in recent years.
How DNS Work In The Theory :
The domain name space consists of a tree of domain names. Each node or branch in the tree has one or more resource records, which hold information associated with the domain name. The tree sub-divides into zones. A zone consists of a collection of connected nodes authoritatively served by an authoritative DNS nameserver. (Note that a single nameserver can host several zones.)
When a system administrator wants to let another administrator control a part of the domain name space within his or her zone of authority, he or she can delegate control to the other administrator. This splits a part of the old zone off into a new zone, which comes under the authority of the second administrator's nameservers. The old zone becomes no longer authoritative for what goes under the authority of the new zone.
A resolver looks up the information associated with nodes. A resolver knows how to communicate with name servers by sending DNS requests, and heeding DNS responses. Resolving usually entails iterating through several name servers to find the needed information.
Some resolvers function simplistically and can only communicate with a single name server. These simple resolvers rely on a recursing name server to perform the work of finding information for them.
IPv4:
Internet Protocol version 4 is the fourth iteration of the Internet Protocol (IP) and it is the first version of the protocol to be widely deployed. IPv4 is the dominant network layer protocol on the Internet and apart from IPv6 it is the only protocol used on the Internet.
It is described in IETF RFC 791 (September 1981) which made obsolete RFC 760 (January 1980). The United States Department of Defense also standardized it as MIL-STD-1777.
IPv4 is a data-oriented protocol to be used on a packet switched internetwork (e.g., Ethernet). It is a best effort protocol in that it does not guarantee delivery. It does not make any guarantees on the correctness of the data; It may result in duplicated packets and/or packets out-of-order. These aspects are addressed by an upper layer protocol (e.g., TCP, and partly by UDP).
The entire purpose of IP is to provide unique global computer addressing to ensure that two computers communicating over the Internet can uniquely identify one another.
Addressing :
IPv4 uses 32-bit (4-byte) addresses, which limits the address space to 4,294,967,296 possible unique addresses. However, some are reserved for special purposes such as private networks (~18 million addresses) or multicast addresses (~1 million addresses). This reduces the number of addresses that can be allocated as public Internet addresses. As the number of addresses available are consumed, an IPv4 address shortage appears to be inevitable, however Network Address Translation (NAT) has significantly delayed this inevitability.
This limitation has helped stimulate the push towards IPv6, which is currently in the early stages of deployment and is currently the only contender to replace IPv4.
Allocation :
Originally, the IP address was divided into two parts:
* Network id : first octet
* Host id : last three octets
This created an upper limit of 256 networks. As the networks began to be allocated, this was soon seen to be inadequate.
To overcome this limit, different classes of network were defined, in a system which later became known as classful networking. Five classes were created (A, B, C, D, & E), three of which (A, B, & C) had different lengths for the network field. The rest of the address field in these three classes was used to identify a host on that network, which meant that each network class had a different maximum number of hosts. Thus there were a few networks with lots of host addresses and numerous networks with only a few addresses. Class D was for multicast addresses and class E was reserved.
Around 1993, these classes were replaced with a Classless Inter-Domain Routing (CIDR) scheme, and the previous scheme was dubbed "classful", by contrast. CIDR's primary advantage is to allow re-division of Class A, B & C networks so that smaller (or larger) blocks of addresses may be allocated to entities (such as Internet service providers, or their customers) or Local Area Networks.
The actual assignment of an address is not arbitrary. The fundamental principle of routing is that address encodes information about a device's location within a network. This implies that an address assigned to one part of a network will not function in another part of the network. A hierarchical structure, created by CIDR and overseen by the Internet Assigned Numbers Authority (IANA) and its Regional Internet Registries (RIRs), manages the assignment of Internet address worldwide. Each RIR maintains a publicly searchable WHOIS database that provides information about IP address assignments; information from these databases plays a central role in numerous tools that attempt to locate IP addresses geographically.
IPv6:
Internet Protocol version 6 (IPv6) is a network layer protocol for packet-switched internetworks. It is designated as the successor of IPv4, the current version of the Internet Protocol, for general use on the Internet.
The main improvement brought by IPv6 is a much larger address space that allows greater flexibility in assigning addresses. While IPv6 could support 2128 (about 3.4׳1038) addresses, or approximately 5׳1028 addresses for each of the roughly 6.5 billion people[1] alive today. It was not the intention of IPv6 designers, however, to give permanent unique addresses to every individual and every computer. Rather, the extended address length eliminates the need to use network address translation to avoid address exhaustion, and also simplifies aspects of address assignment and renumbering when changing providers.
Introduction :
By the early 1990s, it was clear that the change to a classless network introduced a decade earlier was not enough to prevent IPv4 address exhaustion and that further changes to IPv4 were needed.[2] By the winter of 1992, several proposed systems were being circulated and by the fall of 1993, the IETF announced a call for white papers (RFC 1550) and the creation of the "IP, the Next Generation" (IPng Area) of working groups.[2][3]
IPng was adopted by the Internet Engineering Task Force on July 25, 1994 with the formation of several "IP Next Generation" (IPng) working groups.[2] By 1996, a series of RFCs were released defining IPv6, starting with RFC 2460. (Incidentally, IPv5 was not a successor to IPv4, but an experimental flow-oriented streaming protocol intended to support video and audio.)
It is expected that IPv4 will be supported alongside IPv6 for the foreseeable future. IPv4-only nodes (clients or servers) will not be able to communicate directly with IPv6 nodes, and will need to go through an intermediary
Features of IPv6 :
[edit] To a great extent, IPv6 is a conservative extension of IPv4. Most transport- and application-layer protocols need little or no change to work over IPv6; exceptions are applications protocols that embed network-layer addresses (such as FTP or NTPv3).
Applications, however, usually need small changes and a recompile in order to run over IPv6.
Larger address space :
The main feature of IPv6 that is driving adoption today is the larger address space: addresses in IPv6 are 128 bits long versus 32 bits in IPv4.
The larger address space avoids the potential exhaustion of the IPv4 address space without the need for network address translation (NAT) and other devices that break the end-to-end nature of Internet traffic. NAT may still be necessary in rare cases, but Internet engineers recognize that it will be difficult in IPv6 and are trying to avoid it whenever possible. It also makes administration of medium and large networks simpler, by avoiding the need for complex subnetting schemes. Subnetting will, ideally, revert to its purpose of logical segmentation of an IP network for optimal routing and access.
The drawback of the large address size is that IPv6 carries some bandwidth overhead over IPv4, which may hurt regions where bandwidth is limited (header compression can sometimes be used to alleviate this problem). IPv6 addresses are harder to memorize than IPv4 addresses, although even IPv4 addresses are much harder to memorize than Domain Name System (DNS) names. DNS protocols have been modified to support IPv6 as well as IPv4.
Stateless auto configuration of hosts :
IPv6 hosts can be configured automatically when connected to a routed IPv6 network. When first connected to a network, a host sends a link-local multicast request for its configuration parameters; if configured suitably, routers respond to such a request with a router advertisement packet that contains network-layer configuration parameters.
If IPv6 autoconfiguration is not suitable, a host can use stateful autoconfiguration (DHCPv6) or be configured manually. Stateless autoconfiguration is only suitable for hosts: routers must be configured manually or by other means
IPv6 scope :
IPv6 defines 3 unicast address scopes: global, site, and link.
Site-local addresses are non-link-local addresses that are valid within the scope of an administratively-defined site and cannot be exported beyond it.
Companion IPv6 specifications further define that only link-local addresses can be used when generating ICMP Redirect Messages [ND] and as next-hop addresses in most routing protocols.
These restrictions do imply that an IPv6 router must have a link-local next-hop address for all directly connected routes (routes for which the given router and the next-hop router share a common subnet prefix).
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Mesothelioma-picture.com - Mesothelioma
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(Internet Protocol address) is a unique address that certain electronic devices use in order to identify and communicate with each other on a computer network utilizing the Internet Protocol standard (IP)—in simpler terms, a computer address. Any participating network device—including routers, computers, time-servers, printers, Internet fax machines, and some telephones—can have their own unique address.
An IP address can also be thought of as the equivalent of a street address or a phone number ( compare: VoIP (voice over (the) internet protocol)) for a computer or other network device on the Internet. Just as each street address and phone number uniquely identifies a building or telephone, an IP address can uniquely identify a specific computer or other network device on a network. An IP address differs from other contact information, however, because the linkage of a user's IP address to his/her name is not publicly available information.
IP addresses can appear to be shared by multiple client devices either because they are part of a shared hosting web server environment or because a network address translator (NAT) or proxy server acts as an intermediary agent on behalf of its customers, in which case the real originating IP addresses might be hidden from the server receiving a request. A common practice is to have a NAT hide a large number of IP addresses, in the private address space defined by RFC 1918, an address block that cannot be routed on the public Internet. Only the "outside" interface(s) of the NAT need to have Internet-routable addresses.
Most commonly, the NAT device maps TCP or UDP port numbers on the outside to individual private addresses on the inside. Just as there may be site-specific extensions on a telephone number, the port numbers are site-specific extensions to an IP address.
IP addresses are managed and created by the Internet Assigned Numbers Authority (IANA). The IANA generally allocates super-blocks to Regional Internet Registries, who in turn allocate smaller blocks to Internet service providers and enterprises.
DNS Address:
On the Internet, the Domain Name System (DNS) associates various sorts of information with so-called domain names; most importantly, it serves as the "phone book" for the Internet: it translates human-readable computer hostnames, e.g. en.wikipedia.org, into the IP addresses that networking equipment needs for delivering information. It also stores other information such as the list of mail exchange servers that accept email for a given domain. In providing a worldwide keyword-based redirection service, the Domain Name System is an essential component of contemporary Internet use.
Uses :
The most basic use of DNS is to translate hostnames to IP addresses. It is in very simple terms like a phone book. For example, if you want to know the internet address of en.wikipedia.org, the Domain Name System can be used to tell you it is 66.230.200.100. DNS also has other important uses.
Pre-eminently, DNS makes it possible to assign Internet destinations to the human organization or concern they represent, independently of the physical routing hierarchy represented by the numerical IP address. Because of this, hyperlinks and Internet contact information can remain the same, whatever the current IP routing arrangements may be, and can take a human-readable form (such as "wikipedia.org") which is rather easier to remember than an IP address (such as 66.230.200.100). People take advantage of this when they recite meaningful URLs and e-mail addresses without caring how the machine will actually locate them.
The Domain Name System distributes the responsibility for assigning domain names and mapping them to IP networks by allowing an authoritative server for each domain to keep track of its own changes, avoiding the need for a central registrar to be continually consulted and
History :
The practice of using a name as a more human-legible abstraction of a machine's numerical address on the network predates even TCP/IP, and goes all the way to the ARPAnet era. Back then however, a different system was used, as DNS was only invented in 1983, shortly after TCP/IP was deployed. With the older system, each computer on the network retrieved a file called HOSTS.TXT from a computer at SRI (now SRI International). The HOSTS.TXT file mapped numerical addresses to names. A hosts file still exists on most modern operating systems, either by default or through configuration, and allows users to specify an IP address (eg. 192.0.34.166) to use for a hostname (eg. www.example.net) without checking DNS. As of 2006, the hosts file serves primarily for troubleshooting DNS errors or for mapping local addresses to more organic names. Systems based on a hosts file have inherent limitations, because of the obvious requirement that every time a given computer's address changed, every computer that seeks to communicate with it would need an update to its hosts file.
The growth of networking called for a more scalable system: one that recorded a change in a host's address in one place only. Other hosts would learn about the change dynamically through a notification system, thus completing a globally accessible network of all hosts' names and their associated IP Addresses.
At the request of Jon Postel, Paul Mockapetris invented the Domain Name System in 1983 and wrote the first implementation. The original specifications appear in RFC 882 and 883. In 1987, the publication of RFC 1034 and RFC 1035 updated the DNS specification and made RFC 882 and RFC 883 obsolete. Several more-recent RFCs have proposed various extensions to the core DNS protocols.
In 1984, four Berkeley students — Douglas Terry, Mark Painter, David Riggle and Songnian Zhou — wrote the first UNIX implementation, which was maintained by Ralph Campbell thereafter. In 1985, Kevin Dunlap of DEC significantly re-wrote the DNS implementation and renamed it BIND (Berkeley Internet Name Domain, previously: Berkeley Internet Name Daemon). Mike Karels, Phil Almquist and Paul Vixie have maintained BIND since then. BIND was ported to the Windows NT platform in the early 1990s.
Due to BIND's long history of security issues and exploits, several alternative nameserver/resolver programs have been written and distributed in recent years.
How DNS Work In The Theory :
The domain name space consists of a tree of domain names. Each node or branch in the tree has one or more resource records, which hold information associated with the domain name. The tree sub-divides into zones. A zone consists of a collection of connected nodes authoritatively served by an authoritative DNS nameserver. (Note that a single nameserver can host several zones.)
When a system administrator wants to let another administrator control a part of the domain name space within his or her zone of authority, he or she can delegate control to the other administrator. This splits a part of the old zone off into a new zone, which comes under the authority of the second administrator's nameservers. The old zone becomes no longer authoritative for what goes under the authority of the new zone.
A resolver looks up the information associated with nodes. A resolver knows how to communicate with name servers by sending DNS requests, and heeding DNS responses. Resolving usually entails iterating through several name servers to find the needed information.
Some resolvers function simplistically and can only communicate with a single name server. These simple resolvers rely on a recursing name server to perform the work of finding information for them.
IPv4:
Internet Protocol version 4 is the fourth iteration of the Internet Protocol (IP) and it is the first version of the protocol to be widely deployed. IPv4 is the dominant network layer protocol on the Internet and apart from IPv6 it is the only protocol used on the Internet.
It is described in IETF RFC 791 (September 1981) which made obsolete RFC 760 (January 1980). The United States Department of Defense also standardized it as MIL-STD-1777.
IPv4 is a data-oriented protocol to be used on a packet switched internetwork (e.g., Ethernet). It is a best effort protocol in that it does not guarantee delivery. It does not make any guarantees on the correctness of the data; It may result in duplicated packets and/or packets out-of-order. These aspects are addressed by an upper layer protocol (e.g., TCP, and partly by UDP).
The entire purpose of IP is to provide unique global computer addressing to ensure that two computers communicating over the Internet can uniquely identify one another.
Addressing :
IPv4 uses 32-bit (4-byte) addresses, which limits the address space to 4,294,967,296 possible unique addresses. However, some are reserved for special purposes such as private networks (~18 million addresses) or multicast addresses (~1 million addresses). This reduces the number of addresses that can be allocated as public Internet addresses. As the number of addresses available are consumed, an IPv4 address shortage appears to be inevitable, however Network Address Translation (NAT) has significantly delayed this inevitability.
This limitation has helped stimulate the push towards IPv6, which is currently in the early stages of deployment and is currently the only contender to replace IPv4.
Allocation :
Originally, the IP address was divided into two parts:
* Network id : first octet
* Host id : last three octets
This created an upper limit of 256 networks. As the networks began to be allocated, this was soon seen to be inadequate.
To overcome this limit, different classes of network were defined, in a system which later became known as classful networking. Five classes were created (A, B, C, D, & E), three of which (A, B, & C) had different lengths for the network field. The rest of the address field in these three classes was used to identify a host on that network, which meant that each network class had a different maximum number of hosts. Thus there were a few networks with lots of host addresses and numerous networks with only a few addresses. Class D was for multicast addresses and class E was reserved.
Around 1993, these classes were replaced with a Classless Inter-Domain Routing (CIDR) scheme, and the previous scheme was dubbed "classful", by contrast. CIDR's primary advantage is to allow re-division of Class A, B & C networks so that smaller (or larger) blocks of addresses may be allocated to entities (such as Internet service providers, or their customers) or Local Area Networks.
The actual assignment of an address is not arbitrary. The fundamental principle of routing is that address encodes information about a device's location within a network. This implies that an address assigned to one part of a network will not function in another part of the network. A hierarchical structure, created by CIDR and overseen by the Internet Assigned Numbers Authority (IANA) and its Regional Internet Registries (RIRs), manages the assignment of Internet address worldwide. Each RIR maintains a publicly searchable WHOIS database that provides information about IP address assignments; information from these databases plays a central role in numerous tools that attempt to locate IP addresses geographically.
IPv6:
Internet Protocol version 6 (IPv6) is a network layer protocol for packet-switched internetworks. It is designated as the successor of IPv4, the current version of the Internet Protocol, for general use on the Internet.
The main improvement brought by IPv6 is a much larger address space that allows greater flexibility in assigning addresses. While IPv6 could support 2128 (about 3.4׳1038) addresses, or approximately 5׳1028 addresses for each of the roughly 6.5 billion people[1] alive today. It was not the intention of IPv6 designers, however, to give permanent unique addresses to every individual and every computer. Rather, the extended address length eliminates the need to use network address translation to avoid address exhaustion, and also simplifies aspects of address assignment and renumbering when changing providers.
Introduction :
By the early 1990s, it was clear that the change to a classless network introduced a decade earlier was not enough to prevent IPv4 address exhaustion and that further changes to IPv4 were needed.[2] By the winter of 1992, several proposed systems were being circulated and by the fall of 1993, the IETF announced a call for white papers (RFC 1550) and the creation of the "IP, the Next Generation" (IPng Area) of working groups.[2][3]
IPng was adopted by the Internet Engineering Task Force on July 25, 1994 with the formation of several "IP Next Generation" (IPng) working groups.[2] By 1996, a series of RFCs were released defining IPv6, starting with RFC 2460. (Incidentally, IPv5 was not a successor to IPv4, but an experimental flow-oriented streaming protocol intended to support video and audio.)
It is expected that IPv4 will be supported alongside IPv6 for the foreseeable future. IPv4-only nodes (clients or servers) will not be able to communicate directly with IPv6 nodes, and will need to go through an intermediary
Features of IPv6 :
[edit] To a great extent, IPv6 is a conservative extension of IPv4. Most transport- and application-layer protocols need little or no change to work over IPv6; exceptions are applications protocols that embed network-layer addresses (such as FTP or NTPv3).
Applications, however, usually need small changes and a recompile in order to run over IPv6.
Larger address space :
The main feature of IPv6 that is driving adoption today is the larger address space: addresses in IPv6 are 128 bits long versus 32 bits in IPv4.
The larger address space avoids the potential exhaustion of the IPv4 address space without the need for network address translation (NAT) and other devices that break the end-to-end nature of Internet traffic. NAT may still be necessary in rare cases, but Internet engineers recognize that it will be difficult in IPv6 and are trying to avoid it whenever possible. It also makes administration of medium and large networks simpler, by avoiding the need for complex subnetting schemes. Subnetting will, ideally, revert to its purpose of logical segmentation of an IP network for optimal routing and access.
The drawback of the large address size is that IPv6 carries some bandwidth overhead over IPv4, which may hurt regions where bandwidth is limited (header compression can sometimes be used to alleviate this problem). IPv6 addresses are harder to memorize than IPv4 addresses, although even IPv4 addresses are much harder to memorize than Domain Name System (DNS) names. DNS protocols have been modified to support IPv6 as well as IPv4.
Stateless auto configuration of hosts :
IPv6 hosts can be configured automatically when connected to a routed IPv6 network. When first connected to a network, a host sends a link-local multicast request for its configuration parameters; if configured suitably, routers respond to such a request with a router advertisement packet that contains network-layer configuration parameters.
If IPv6 autoconfiguration is not suitable, a host can use stateful autoconfiguration (DHCPv6) or be configured manually. Stateless autoconfiguration is only suitable for hosts: routers must be configured manually or by other means
IPv6 scope :
IPv6 defines 3 unicast address scopes: global, site, and link.
Site-local addresses are non-link-local addresses that are valid within the scope of an administratively-defined site and cannot be exported beyond it.
Companion IPv6 specifications further define that only link-local addresses can be used when generating ICMP Redirect Messages [ND] and as next-hop addresses in most routing protocols.
These restrictions do imply that an IPv6 router must have a link-local next-hop address for all directly connected routes (routes for which the given router and the next-hop router share a common subnet prefix).
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Labels: dns, dns address, how to find my ip, ip address, ip trace, ipv4, ipv6 address, my ip, myip
Advice on choosing software to create proffesional looking slide show presentations.
When considering the best software packages to convert your digital images into slideshow presentations it is important to choose one that will cover all your requirements whether you are a beginner or an advanced user.
As a beginner you will be looking for ease of use and the possibility to use a “wizard” – a simple menu driven option – to create impressive slideshows quickly and easily. The ability to add background music to the slideshow and even commentary recorded easily via a microphone will be essential. Once you have the basics have been mastered, the software should then to offer a range of sophisticated features and functions in order that you can get the maximum benefit from your digital images and photographs.
Images can be uploaded from digital cameras of course but it is important also to have the facility to use images that have been scanned into the PC and this feature is an absolute must when considering which package to go with. Some packages also limit the number of images that can be used in a presentation. This is not helpful when designing large presentations so ensure that you choose one that offers the option to include an unlimited number in your slideshow.
Think about how easy it will be to organise your all your images, sounds and music into the final presentation. There are packages on the market that can split presentations into smaller files or “chapters” which allows you to stay organised at all times. These chapters fit into a “timeline” which is an excellent way to lay out your presentation in much the same way as movie director will have scenes in a film script. The timeline allows the use to align all the object such as images and music against a point in time and synchronise flow of sounds and images.
Music and sounds that can be faded in and out by defining the volume with the slideshow also add a professional touch to the finished article.
One of the most important factors in creating exciting and impressive slideshows is the number of different ways in which individual “static” images can be moved around the screen to create the impression of animation on the screen. Not only a single image at time but even collages of several images! It is almost as if the photos are living! Make sure that you select a software package that enables you to take an image (or even just part of that image) and make it move through complex movement paths including rotation, zooms and camera pans. Fine tuning of these functions will produce an extremely professional-looking presentation.
A good slideshow is not just about the images but also the text to accompany the pictures. The very best slideshow packages will allow you to use a huge variety of effects on your text to make it fade in and out, fly across the screen around or even through your images, transitioning between the effects and adding many text features such as 3D. All the time you need to be able to control the timing of these effects for the most professional finish.
Once your slideshow is completed it is absolutely vital that it can be easily burned onto VCD or SVCD for playing on a PC or better still onto DVD so it can be watched on a television. If you can find a single package that does all of these things and is simple to learn and use through a series of tutorials then you will creating fantastic slideshow presentations in no time!
Safex.org - Nutritional Health Blog
Innerdemonsmovie.com - Movie News
Mesothelioma-picture.com - Mesothelioma
Westernstreet7.com - Travel World Vacation
As a beginner you will be looking for ease of use and the possibility to use a “wizard” – a simple menu driven option – to create impressive slideshows quickly and easily. The ability to add background music to the slideshow and even commentary recorded easily via a microphone will be essential. Once you have the basics have been mastered, the software should then to offer a range of sophisticated features and functions in order that you can get the maximum benefit from your digital images and photographs.
Images can be uploaded from digital cameras of course but it is important also to have the facility to use images that have been scanned into the PC and this feature is an absolute must when considering which package to go with. Some packages also limit the number of images that can be used in a presentation. This is not helpful when designing large presentations so ensure that you choose one that offers the option to include an unlimited number in your slideshow.
Think about how easy it will be to organise your all your images, sounds and music into the final presentation. There are packages on the market that can split presentations into smaller files or “chapters” which allows you to stay organised at all times. These chapters fit into a “timeline” which is an excellent way to lay out your presentation in much the same way as movie director will have scenes in a film script. The timeline allows the use to align all the object such as images and music against a point in time and synchronise flow of sounds and images.
Music and sounds that can be faded in and out by defining the volume with the slideshow also add a professional touch to the finished article.
One of the most important factors in creating exciting and impressive slideshows is the number of different ways in which individual “static” images can be moved around the screen to create the impression of animation on the screen. Not only a single image at time but even collages of several images! It is almost as if the photos are living! Make sure that you select a software package that enables you to take an image (or even just part of that image) and make it move through complex movement paths including rotation, zooms and camera pans. Fine tuning of these functions will produce an extremely professional-looking presentation.
A good slideshow is not just about the images but also the text to accompany the pictures. The very best slideshow packages will allow you to use a huge variety of effects on your text to make it fade in and out, fly across the screen around or even through your images, transitioning between the effects and adding many text features such as 3D. All the time you need to be able to control the timing of these effects for the most professional finish.
Once your slideshow is completed it is absolutely vital that it can be easily burned onto VCD or SVCD for playing on a PC or better still onto DVD so it can be watched on a television. If you can find a single package that does all of these things and is simple to learn and use through a series of tutorials then you will creating fantastic slideshow presentations in no time!
Safex.org - Nutritional Health Blog
Innerdemonsmovie.com - Movie News
Mesothelioma-picture.com - Mesothelioma
Westernstreet7.com - Travel World Vacation
Labels: living photos photographic software
Protect Your Network From Identity Theft Now!
It is deniable that our works and lives are more convenient and easier when using wireless. We can work anywhere and that is why wireless networks are becoming so popular. Especially if you have broadband Internet access, a wireless router can give you instant communication with the world.
Imagine you are sitting by the pool and enjoying chatting through the Internet. Or lounging in the Jacuzzi listening to your MP3 collection is appealing to us all. Unfortunately, many, or even most, wireless units don't come with security features already functioning. This may not seem like a big issue to someone who is simply setting up a home network, but there are a number of potential problems you should consider.
Identity theft seems to be the most serious problem. If your network is unsecured, the personal data on your wireless electronic equipment is also unsecured. The order you just placed for a book at Amazon may have given your contact and payment information to an unscrupulous hacker! Nearly every town in which "WiFi" is common will have "War Drivers" and "War Chalkers" at work. These are people who walk or drive around town with wireless equipment, searching for unsecured networks. The "Chalkers" then live up their name, marking curbs and other public items with chalk so that others can more easily find and exploit your network.
In fact, not all "War Drivers" are hackers, of course. Many just want to use your network for free, but the risk is high if you don't learn how to protect yourself. You can usually find quite a bit of free information as to how to secure your network at the website of your router's manufacturer, or by doing a search in a search engine for a phrase like "secure home wireless."
In addition, there are also your neighbors who may find your network by accident and enjoy nosing into your activities and using your Internet access at will, slowing down your network speed in the process.
Even many businesses use cheap, home-use quality equipment for their company networks. With the poor security often found on small business networks, anyone with a basic knowledge of wireless can access sensitive company and customer data.
It is highly recommended that you hire service companies to secure your network for you, or else you will have to bear with a risk of being exploited. A search of your local yellow pages or an inquiry at your neighborhood computer store should yield professional help and get your private data private again.
Safex.org - Nutritional Health Blog
Innerdemonsmovie.com - Movie News
Mesothelioma-picture.com - Mesothelioma
Westernstreet7.com - Travel World Vacation
Imagine you are sitting by the pool and enjoying chatting through the Internet. Or lounging in the Jacuzzi listening to your MP3 collection is appealing to us all. Unfortunately, many, or even most, wireless units don't come with security features already functioning. This may not seem like a big issue to someone who is simply setting up a home network, but there are a number of potential problems you should consider.
Identity theft seems to be the most serious problem. If your network is unsecured, the personal data on your wireless electronic equipment is also unsecured. The order you just placed for a book at Amazon may have given your contact and payment information to an unscrupulous hacker! Nearly every town in which "WiFi" is common will have "War Drivers" and "War Chalkers" at work. These are people who walk or drive around town with wireless equipment, searching for unsecured networks. The "Chalkers" then live up their name, marking curbs and other public items with chalk so that others can more easily find and exploit your network.
In fact, not all "War Drivers" are hackers, of course. Many just want to use your network for free, but the risk is high if you don't learn how to protect yourself. You can usually find quite a bit of free information as to how to secure your network at the website of your router's manufacturer, or by doing a search in a search engine for a phrase like "secure home wireless."
In addition, there are also your neighbors who may find your network by accident and enjoy nosing into your activities and using your Internet access at will, slowing down your network speed in the process.
Even many businesses use cheap, home-use quality equipment for their company networks. With the poor security often found on small business networks, anyone with a basic knowledge of wireless can access sensitive company and customer data.
It is highly recommended that you hire service companies to secure your network for you, or else you will have to bear with a risk of being exploited. A search of your local yellow pages or an inquiry at your neighborhood computer store should yield professional help and get your private data private again.
Safex.org - Nutritional Health Blog
Innerdemonsmovie.com - Movie News
Mesothelioma-picture.com - Mesothelioma
Westernstreet7.com - Travel World Vacation
Labels: network, now, secrets, wireless
Buying Printer Cartridges
Printing has become an absolute necessity for people all over the nation and world these days. Whether a person needs to print an essay for a school project or a business plan to present to their peers, having a reliable method of translating work done on a computer to a sheet of paper is a must. One important part of a printer that often gets overlooked in the process, however, is the printer cartridge. Containing the ink necessary to write lines and create diagrams on a blank sheet of paper, printer cartridges are something that no printer can be without. It is important, therefore, that anyone who plans on using his or her printer on a continuous basis have a reliable method to replace their printer cartridges when they inevitably dry out of ink.
One of the most common mistakes that is made is to buy a printer cartridge only after the previous one has become useless. The simple truth is that these cartridges are often very expensive and are not always easily acquirable. Because of these attributes, there are several strategies to employ when purchasing printer cartridges for the future.
The first thing to remember is that printer cartridges come in a great variety and that a person can’t just plug the first one they see at the store into their printer and expect results. You have to buy a printer cartridge that is compatible with your printer, or you will have wasted your time and money. For example, if you own a Canon printer, it would be foolish to buy a Lexmark printer cartridge. If you are not sure about which cartridges fit your printer, jot down the printer brand and model and ask a sales representative to help you out.
Also remember that while printer cartridges are quite expensive, it is best to get backups when they go on sale. If for example, you own a HP printer and see a sale on all HP and Epson printer cartridges during Thanksgiving, you should head down to the store and pick some up. There is no point in waiting until you really need the printer cartridge to buy them and paying double or triple the price. On a similar note, if the sale were for Xerox and Pitney Bowes printer cartridges, don’t buy them just because they are discounted. If the printer cartridges are not compatible with your printer, they are basically worthless. But overall, being a smart consumer and thinking ahead will do nothing but benefit you in terms of saving time and money.
Overall there are many different printer cartridges, from Xerox to Pitney Bowes, and many different printers, from Canon brands to Lexmark, which they can be used with. Knowing which printer cartridge to buy and taking advantage of sales can go a long way in ensuring that your printer will be working with high quality whenever it is needed!
Safex.org - Nutritional Health Blog
Innerdemonsmovie.com - Movie News
Mesothelioma-picture.com - Mesothelioma
Westernstreet7.com - Travel World Vacation
One of the most common mistakes that is made is to buy a printer cartridge only after the previous one has become useless. The simple truth is that these cartridges are often very expensive and are not always easily acquirable. Because of these attributes, there are several strategies to employ when purchasing printer cartridges for the future.
The first thing to remember is that printer cartridges come in a great variety and that a person can’t just plug the first one they see at the store into their printer and expect results. You have to buy a printer cartridge that is compatible with your printer, or you will have wasted your time and money. For example, if you own a Canon printer, it would be foolish to buy a Lexmark printer cartridge. If you are not sure about which cartridges fit your printer, jot down the printer brand and model and ask a sales representative to help you out.
Also remember that while printer cartridges are quite expensive, it is best to get backups when they go on sale. If for example, you own a HP printer and see a sale on all HP and Epson printer cartridges during Thanksgiving, you should head down to the store and pick some up. There is no point in waiting until you really need the printer cartridge to buy them and paying double or triple the price. On a similar note, if the sale were for Xerox and Pitney Bowes printer cartridges, don’t buy them just because they are discounted. If the printer cartridges are not compatible with your printer, they are basically worthless. But overall, being a smart consumer and thinking ahead will do nothing but benefit you in terms of saving time and money.
Overall there are many different printer cartridges, from Xerox to Pitney Bowes, and many different printers, from Canon brands to Lexmark, which they can be used with. Knowing which printer cartridge to buy and taking advantage of sales can go a long way in ensuring that your printer will be working with high quality whenever it is needed!
Safex.org - Nutritional Health Blog
Innerdemonsmovie.com - Movie News
Mesothelioma-picture.com - Mesothelioma
Westernstreet7.com - Travel World Vacation
Labels: Canon, Epson, HP, Lexmark, Pitney Bowes, printer cartridges, Xerox
Computer Backups
COMPUTERS AND HALLOWEEN, DO THEY MIX?
Computer backup is so important to your computer that to ignore it is to risk its damnation.
Computers require care and feeding. They require that you attend to their needs. If you don't, then they will most surely be sent to Hell.
Halloween means Hell. What! What do you mean that Halloween means Hell?
Well, if your computer is given the option of trick or treat, which will it accept? Will it accept the trick or the treat? What do you think?
Halloween is the time that computers are subject to tricks or treats. Did you know that more computers fail on Halloween than any other day of the year? That’s right. It’s true (smile). Your computer is in danger! Protect it. Do your computer backups.
Back to the Hell thing. Hell you say? Yep. Well, what do you mean by Hell?
Computer hell is the place for computers without computer backup. The failure to perform hard drive backup means that you are playing Russian Roulette with your data. Data needs your protection. Failure to protect your data may cause your home or business records to be sent to Hell.
Hell in this instance is for the records and files that cannot be resurrected. Resurrected you say, what does that mean?
It means that without computer backup as a source of salvation then the files can safely enjoy eternal oblivion. Oblivion you say, what does that mean? That means they are eternally lost from computer resurrection.
Is there any mercy for my precious files, you ask?
Why yes there is. Would like to know what the mercy for your files is? Yes! Yes! You say.
OK boys and girls listen carefully. The salvation, mercy, resurrection and redemption of your files lies in regular and consistent and persistent computer backup.
If you backup your computer consistently and persistently your files will be resurrected and saved from accidental deletion, hard drive failure and those nasty things like fire, flood, theft, earthquake, hurricanes, tornados and the like!
Computer backup is the key to your data's salvation!
Do your computer backups boys and girls.
Milk and cookies will be served in the pantry.
Trick or treat for your computer backup?
Safex.org - Nutritional Health Blog
Innerdemonsmovie.com - Movie News
Mesothelioma-picture.com - Mesothelioma
Westernstreet7.com - Travel World Vacation
Computer backup is so important to your computer that to ignore it is to risk its damnation.
Computers require care and feeding. They require that you attend to their needs. If you don't, then they will most surely be sent to Hell.
Halloween means Hell. What! What do you mean that Halloween means Hell?
Well, if your computer is given the option of trick or treat, which will it accept? Will it accept the trick or the treat? What do you think?
Halloween is the time that computers are subject to tricks or treats. Did you know that more computers fail on Halloween than any other day of the year? That’s right. It’s true (smile). Your computer is in danger! Protect it. Do your computer backups.
Back to the Hell thing. Hell you say? Yep. Well, what do you mean by Hell?
Computer hell is the place for computers without computer backup. The failure to perform hard drive backup means that you are playing Russian Roulette with your data. Data needs your protection. Failure to protect your data may cause your home or business records to be sent to Hell.
Hell in this instance is for the records and files that cannot be resurrected. Resurrected you say, what does that mean?
It means that without computer backup as a source of salvation then the files can safely enjoy eternal oblivion. Oblivion you say, what does that mean? That means they are eternally lost from computer resurrection.
Is there any mercy for my precious files, you ask?
Why yes there is. Would like to know what the mercy for your files is? Yes! Yes! You say.
OK boys and girls listen carefully. The salvation, mercy, resurrection and redemption of your files lies in regular and consistent and persistent computer backup.
If you backup your computer consistently and persistently your files will be resurrected and saved from accidental deletion, hard drive failure and those nasty things like fire, flood, theft, earthquake, hurricanes, tornados and the like!
Computer backup is the key to your data's salvation!
Do your computer backups boys and girls.
Milk and cookies will be served in the pantry.
Trick or treat for your computer backup?
Safex.org - Nutritional Health Blog
Innerdemonsmovie.com - Movie News
Mesothelioma-picture.com - Mesothelioma
Westernstreet7.com - Travel World Vacation
Labels: backup computer, computer backup, computer backup software, halloween, hard drive backup
Nero General CleanTool 2.2.0.37
Nero General CleanTool 2.2.0.37
Vous voulez installer la Nero 9? Alors vous devrez désinstaller complètement la version 8 pour que tout se passe bien.
Nero General CleanTool a été conçu dans ce but par l'éditeur de la fameuse suite de gravure. Non seulement il sait désinstaller Nero 8 en profondeur, mais en plus il supprime tous les utilitaires Nero installés sur votre PC.
Pour l'utiliser, rien de plus simple: il suffit de rechercher le répertoire d'installation des programmes Nero en question (par défaut, "Program Files") pour que Nero General CleanTool puisse les lister.
Ne reste plus qu'à cocher les cases correspondant aux éléments à supprimer. Nettoyez, redémarrez le PC, c'est terminé.
Utile, rapide et efficace. La bonne solution pour se débarrasser une bonne fois pour toutes des dernières traces de Nero 8.
OS compatible avec Nero General CleanTool:
OS: Win2000/XP/2003/Vista
Configuration minimale:
Nero
Vous voulez installer la Nero 9? Alors vous devrez désinstaller complètement la version 8 pour que tout se passe bien.
Nero General CleanTool a été conçu dans ce but par l'éditeur de la fameuse suite de gravure. Non seulement il sait désinstaller Nero 8 en profondeur, mais en plus il supprime tous les utilitaires Nero installés sur votre PC.
Pour l'utiliser, rien de plus simple: il suffit de rechercher le répertoire d'installation des programmes Nero en question (par défaut, "Program Files") pour que Nero General CleanTool puisse les lister.
Ne reste plus qu'à cocher les cases correspondant aux éléments à supprimer. Nettoyez, redémarrez le PC, c'est terminé.
Utile, rapide et efficace. La bonne solution pour se débarrasser une bonne fois pour toutes des dernières traces de Nero 8.
OS compatible avec Nero General CleanTool:
OS: Win2000/XP/2003/Vista
Configuration minimale:
Nero
Telecharger
VistaGlazz 1.2
VistaGlazz 1.2
Vistaglazz vous redonne le pouvoir. Ce logiciel permet de reprendre la main sur l'installation des thèmes de Windows Vista, autorisant alors le support des thèmes non officiels de Microsoft, et débloquant quelques options de l'interface.
Vista offre par exemple de nombreux effets de transparence via son interface Aero, mais ils disparaissent si vous passez votre fenêtre active en mode plein écran. VistaGlazz permet de maintenir la transparence quel que soit l'état de la fenêtre.
VistaGlazz offre aussi le support des thèmes personnalisés dans Vista, normalement impossibles à installer. Tous les icônes, thèmes, fonds d'écran, curseurs "officieux" sont maintenant disponibles et faciles à installer.
Patch gratuit pour modifier Vista, VistaGlazz a le mérite de rester simple et s'avère très pratique.
Notes:
VistaGlazz modifie des éléments du système. Veillez donc à bien faire une sauvegarde de sécurité avant de vous lancer dans des modifications.
Dernières modifications de VistaGlazz:
La version actuelle fonctionne avec Windows Vista Service Pack 1.
OS compatible avec VistaGlazz:
OS: Windows Vista
Vistaglazz vous redonne le pouvoir. Ce logiciel permet de reprendre la main sur l'installation des thèmes de Windows Vista, autorisant alors le support des thèmes non officiels de Microsoft, et débloquant quelques options de l'interface.
Vista offre par exemple de nombreux effets de transparence via son interface Aero, mais ils disparaissent si vous passez votre fenêtre active en mode plein écran. VistaGlazz permet de maintenir la transparence quel que soit l'état de la fenêtre.
VistaGlazz offre aussi le support des thèmes personnalisés dans Vista, normalement impossibles à installer. Tous les icônes, thèmes, fonds d'écran, curseurs "officieux" sont maintenant disponibles et faciles à installer.
Patch gratuit pour modifier Vista, VistaGlazz a le mérite de rester simple et s'avère très pratique.
Notes:
VistaGlazz modifie des éléments du système. Veillez donc à bien faire une sauvegarde de sécurité avant de vous lancer dans des modifications.
Dernières modifications de VistaGlazz:
La version actuelle fonctionne avec Windows Vista Service Pack 1.
OS compatible avec VistaGlazz:
OS: Windows Vista
Telecharger
Avira AntiVir Removal Tool 3.0.1.17
Avira AntiVir Removal Tool 3.0.1.17
Lorsqu'un ordinateur est infecté par un programme malveillant, il peut en conserver des séquelles durables.
Avira AntiVir Removal Tool est un outil spécifiquement conçu pour éliminer les variantes les plus courantes de certains vers parmi les plus diffusés ces dernières années: Sober, Banker, Stanit et NetSky.
Hormis le fait que son interface est en anglais, Avira AntiVir Removal Tool ne présente strictement aucune difficulté d'utilisation: il suffit de le lancer et de cliquer sur "Scan" pour qu'il explore le PC à la recherche des vers à supprimer.
Quand c'est possible, il sait même réparer les fichiers corrompus.
Un bon outil gratuit pour se débarrasser de menaces spécifiques. Sans installation, Avira AntiVir Removal Tool peut être lancé depuis une clé USB sur n'importe quel PC infecté.
OS compatible avec Avira AntiVir Removal Tool:
OS: Win98/98SE/Me/2000/NT/XP/2003/Vista
Lorsqu'un ordinateur est infecté par un programme malveillant, il peut en conserver des séquelles durables.
Avira AntiVir Removal Tool est un outil spécifiquement conçu pour éliminer les variantes les plus courantes de certains vers parmi les plus diffusés ces dernières années: Sober, Banker, Stanit et NetSky.
Hormis le fait que son interface est en anglais, Avira AntiVir Removal Tool ne présente strictement aucune difficulté d'utilisation: il suffit de le lancer et de cliquer sur "Scan" pour qu'il explore le PC à la recherche des vers à supprimer.
Quand c'est possible, il sait même réparer les fichiers corrompus.
Un bon outil gratuit pour se débarrasser de menaces spécifiques. Sans installation, Avira AntiVir Removal Tool peut être lancé depuis une clé USB sur n'importe quel PC infecté.
OS compatible avec Avira AntiVir Removal Tool:
OS: Win98/98SE/Me/2000/NT/XP/2003/Vista
Telecharger
Fond d'écran Totally Spies! Le Film
Fond d'écran Totally Spies! Le Film
Sam, Alex et Clover, les trois lycéennes de Mali-U, Hollywood, débarquent au cinéma après avoir cartonné sur TF1 depuis 2002, et dans une trentaine de pays dont les Etats-Unis.
Totally Spies, librement inspiré de « Drôles de dames », raconte les aventures de trois amies devenues espionnes malgré elles.
Rien n?est trop grand pour les espionnes en herbe: déjà à l?origine de nombreux produits dérivés (jeux vidéo, CD?), c?est au cinéma que s?attaquent désormais les « Totally Spies »?
Dans cet épisode de 1h30, on apprend comment les trois amies sont recrutées par le WOOHP, le World Office des Opérations Hautement Prioritaires. On les suit dans leur première mission, enquêter sur la disparition de Peppy Garou, un coach psychologique pour animaux...
« Totally Spies Le Film », sorti en salles en 2009, relate les origines du dessin animé star de TF1.... Avec ce fond d'écran gratuit, les Espionnes de Choc sont partout!
OS compatible avec Fond d'écran Totally Spies! Le Film:
OS: Win95/98/98SE/Me/2000/NT/XP/2003/Vista/7
Configuration minimale:
Résolution: 1280 x 1024
Sam, Alex et Clover, les trois lycéennes de Mali-U, Hollywood, débarquent au cinéma après avoir cartonné sur TF1 depuis 2002, et dans une trentaine de pays dont les Etats-Unis.
Totally Spies, librement inspiré de « Drôles de dames », raconte les aventures de trois amies devenues espionnes malgré elles.
Rien n?est trop grand pour les espionnes en herbe: déjà à l?origine de nombreux produits dérivés (jeux vidéo, CD?), c?est au cinéma que s?attaquent désormais les « Totally Spies »?
Dans cet épisode de 1h30, on apprend comment les trois amies sont recrutées par le WOOHP, le World Office des Opérations Hautement Prioritaires. On les suit dans leur première mission, enquêter sur la disparition de Peppy Garou, un coach psychologique pour animaux...
« Totally Spies Le Film », sorti en salles en 2009, relate les origines du dessin animé star de TF1.... Avec ce fond d'écran gratuit, les Espionnes de Choc sont partout!
OS compatible avec Fond d'écran Totally Spies! Le Film:
OS: Win95/98/98SE/Me/2000/NT/XP/2003/Vista/7
Configuration minimale:
Résolution: 1280 x 1024
Telecharger
DriverScanner 2009 3.1
DriverScanner 2009 3.1
DriverScanner est un utilitaire spécialisé dans la gestion des pilotes matériels, aussi appelés drivers. Il permet de maintenir à jour vos pilotes, mais aussi de les sauvegarder.
L'interface est agréable et simple à prendre en main. Le scan des drivers commence dès le lancement de l'application et signale ceux pour lesquels une mise un jour est disponible.
Un clic suffit ensuite à DriverScanner pour télécharger les dernières versions et les installer. Vous pouvez mettre à jour tous les drivers en une seule opération ou les actualiser individuellement.
Des icônes et un code couleur permettent aussi de savoir si les pilotes sélectionnés sont sûrs, s'ils comportent des risques modérés ou s'ils sont instables.
DriverScanner permet aussi de créer des sauvegardes des drivers et de les restaurer dans leur intégralité ou individuellement.
Enfin, notons que DriverScanner est certifié Microsoft Gold. Un point positif quand on sait que les pilotes matériels influencent aussi la stabilité du système et ses performances.
Efficace et bien conçu, DriverScanner est un excellent choix pour maintenir votre base de drivers à jour.
Limitations:
Ne permet pas de télécharger les drivers en mode démo.
OS compatible avec DriverScanner:
OS: WinXP/Vista
Configuration minimale:
Processeur: 500 MHzMémoire: 256 MoEspace disponible: 200 Mo
DriverScanner est un utilitaire spécialisé dans la gestion des pilotes matériels, aussi appelés drivers. Il permet de maintenir à jour vos pilotes, mais aussi de les sauvegarder.
L'interface est agréable et simple à prendre en main. Le scan des drivers commence dès le lancement de l'application et signale ceux pour lesquels une mise un jour est disponible.
Un clic suffit ensuite à DriverScanner pour télécharger les dernières versions et les installer. Vous pouvez mettre à jour tous les drivers en une seule opération ou les actualiser individuellement.
Des icônes et un code couleur permettent aussi de savoir si les pilotes sélectionnés sont sûrs, s'ils comportent des risques modérés ou s'ils sont instables.
DriverScanner permet aussi de créer des sauvegardes des drivers et de les restaurer dans leur intégralité ou individuellement.
Enfin, notons que DriverScanner est certifié Microsoft Gold. Un point positif quand on sait que les pilotes matériels influencent aussi la stabilité du système et ses performances.
Efficace et bien conçu, DriverScanner est un excellent choix pour maintenir votre base de drivers à jour.
Limitations:
Ne permet pas de télécharger les drivers en mode démo.
OS compatible avec DriverScanner:
OS: WinXP/Vista
Configuration minimale:
Processeur: 500 MHzMémoire: 256 MoEspace disponible: 200 Mo
Telecharger
PicPick Portable 2.0.3
PicPick Portable 2.0.3
PicPick est un logiciel d'édition photo malin et pratique qui permet de capturer tout ou partie de votre écran d'ordinateur. Comme il est portable, il peut être emmené partout et lancé depuis une clé USB.
L'outil de capture d'écran de PicPick est incroyablement intuitif et performant. Vous pouvez définir un raccourci clavier pour chaque prise, que ce soit pour garder l'écran entier, la fenêtre active, effectuer une capture à main levée ou répéter votre dernier screenshot sans effort. L'image générée s'ouvre ensuite dans un éditeur photo très costaud.
Chaque image peut être traitée selon votre convenance. Vous pouvez la passer en noir et blanc, la rogner, la faire pivoter. Jouez sur la brillance, les contrastes et le flou pour donner à vos photos l'aspect souhaité.
Dans un cadre un peu plus professionnel, vous pouvez agrémenter vos captures de flèches, cadres, soulignage et bien d'autres choses encore.
PicPick se compose d'autres éléments pour permettre un travail propre. Un rapporteur, une règle de pixels et un viseur sont autant d'outils pour obtenir la capture parfaite. Le "repiqueur" de couleurs peut également s'avérer bien utile.
Dommage que PicPick ne permette pas d'envoyer directement les images par e-mail.
PicPick est un outil performant, assez complet et à la portée de tous. Il est surtout "pompé" sur le surpuissant SnagIt avec un atout supplémentaire dans sa manche: PicPick est gratuit.
OS compatible avec PicPick Portable:
OS: Win95/98/98SE/Me/2000/XP/Vista/7
PicPick est un logiciel d'édition photo malin et pratique qui permet de capturer tout ou partie de votre écran d'ordinateur. Comme il est portable, il peut être emmené partout et lancé depuis une clé USB.
L'outil de capture d'écran de PicPick est incroyablement intuitif et performant. Vous pouvez définir un raccourci clavier pour chaque prise, que ce soit pour garder l'écran entier, la fenêtre active, effectuer une capture à main levée ou répéter votre dernier screenshot sans effort. L'image générée s'ouvre ensuite dans un éditeur photo très costaud.
Chaque image peut être traitée selon votre convenance. Vous pouvez la passer en noir et blanc, la rogner, la faire pivoter. Jouez sur la brillance, les contrastes et le flou pour donner à vos photos l'aspect souhaité.
Dans un cadre un peu plus professionnel, vous pouvez agrémenter vos captures de flèches, cadres, soulignage et bien d'autres choses encore.
PicPick se compose d'autres éléments pour permettre un travail propre. Un rapporteur, une règle de pixels et un viseur sont autant d'outils pour obtenir la capture parfaite. Le "repiqueur" de couleurs peut également s'avérer bien utile.
Dommage que PicPick ne permette pas d'envoyer directement les images par e-mail.
PicPick est un outil performant, assez complet et à la portée de tous. Il est surtout "pompé" sur le surpuissant SnagIt avec un atout supplémentaire dans sa manche: PicPick est gratuit.
OS compatible avec PicPick Portable:
OS: Win95/98/98SE/Me/2000/XP/Vista/7
Telecharger
Cristiano Ronaldo Fond d?écran
Cristiano Ronaldo Fond d?écran
Ballon d?or à 23 ans, transfert le plus cher de l?histoire à 24, Cristiano Ronaldo affole tous les compteurs. 94 millions d?euros, c?est la somme qu'a déboursé Florentino Perez pour attirer la star portugaise au Real de Madrid.
A l'aube de ses 25 ans, Cristiano Ronaldo compte déjà 62 sélections pour 22 buts marqués en équipe du Portugal et a déjà participé à deux Championnats d?Europe et une Coupe du monde. Même s?il peine à être décisif en équipe nationale, son palmarès en club est déjà long comme le bras?
Auteur de buts spectaculaires, celui qu?on surnommait CR7 (maintenant CR9) est l?un des sportifs les plus médiatiques du monde? Au contraire d?un Lionel Messi qui fuit les caméras. Malgré tout, ce dernier lui a soufflé la vedette lors de la finale de ligue des champions 2009.
Cristiano Ronaldo joue maintenant au Real Madrid et compte bien rendre la monnaie de sa pièce au Barça de Thierry Henry, Lionel Messi et Carles Puyol? Voici un fond d?écran officiel pour les fans de l?attaquant portugais!
OS compatible avec Cristiano Ronaldo Fond d?écran:
OS: Win95/98/98SE/Me/2000/NT/XP/2003/Vista/7
Configuration minimale:
Résolution: 1024 x 768
Ballon d?or à 23 ans, transfert le plus cher de l?histoire à 24, Cristiano Ronaldo affole tous les compteurs. 94 millions d?euros, c?est la somme qu'a déboursé Florentino Perez pour attirer la star portugaise au Real de Madrid.
A l'aube de ses 25 ans, Cristiano Ronaldo compte déjà 62 sélections pour 22 buts marqués en équipe du Portugal et a déjà participé à deux Championnats d?Europe et une Coupe du monde. Même s?il peine à être décisif en équipe nationale, son palmarès en club est déjà long comme le bras?
Auteur de buts spectaculaires, celui qu?on surnommait CR7 (maintenant CR9) est l?un des sportifs les plus médiatiques du monde? Au contraire d?un Lionel Messi qui fuit les caméras. Malgré tout, ce dernier lui a soufflé la vedette lors de la finale de ligue des champions 2009.
Cristiano Ronaldo joue maintenant au Real Madrid et compte bien rendre la monnaie de sa pièce au Barça de Thierry Henry, Lionel Messi et Carles Puyol? Voici un fond d?écran officiel pour les fans de l?attaquant portugais!
OS compatible avec Cristiano Ronaldo Fond d?écran:
OS: Win95/98/98SE/Me/2000/NT/XP/2003/Vista/7
Configuration minimale:
Résolution: 1024 x 768
Telecharger
Cropper 1.9.2
Cropper 1.9.2
Cropper simplifie la capture d'écran au point de la rendre aussi instinctive qu'un clic de souris.
Gratuit et Open Source, ce logiciel peut rendre de grands services pour illustrer un Powerpoint, garder une trace d'une page internet intéressante, ou prouver à ses amis que l?on a atteint le dernier niveau d?un jeu vidéo...
Un clic, et abracadabra! Surgit une fenêtre semi opaque qu'il suffit de déplacer sur la zone à capturer. Un autre double clic, et la capture d'écran est sauvegardée dans le répertoire de votre choix.
Cropper inclut des touches de raccourci: Alt + Impr Ecran capture la fenêtre en cours, et Ctrl + Alt + Impr Ecran opère une capture de la totalité de votre écran. Vous pouvez paramétrer d'autres touches de raccourci à volonté.
Cropper est simple et diablement efficace, les paramètres sont réduits au minimum: export en BMP, JPG, PNG ou directement vers une imprimante, .
Pour une capture d'écran qui dégaine plus vite que son ombre, Cropper est l'idéal... Minimaliste mais efficace!
Formats supportés par Cropper:
JPG, BMP, PNG
OS compatible avec Cropper:
OS: Win98/98SE/Me/2000/XP
Cropper simplifie la capture d'écran au point de la rendre aussi instinctive qu'un clic de souris.
Gratuit et Open Source, ce logiciel peut rendre de grands services pour illustrer un Powerpoint, garder une trace d'une page internet intéressante, ou prouver à ses amis que l?on a atteint le dernier niveau d?un jeu vidéo...
Un clic, et abracadabra! Surgit une fenêtre semi opaque qu'il suffit de déplacer sur la zone à capturer. Un autre double clic, et la capture d'écran est sauvegardée dans le répertoire de votre choix.
Cropper inclut des touches de raccourci: Alt + Impr Ecran capture la fenêtre en cours, et Ctrl + Alt + Impr Ecran opère une capture de la totalité de votre écran. Vous pouvez paramétrer d'autres touches de raccourci à volonté.
Cropper est simple et diablement efficace, les paramètres sont réduits au minimum: export en BMP, JPG, PNG ou directement vers une imprimante, .
Pour une capture d'écran qui dégaine plus vite que son ombre, Cropper est l'idéal... Minimaliste mais efficace!
Formats supportés par Cropper:
JPG, BMP, PNG
OS compatible avec Cropper:
OS: Win98/98SE/Me/2000/XP
Telecharger
Grisbi 0.5.9
Grisbi 0.5.9
Grisbi est un logiciel de finances personnelles gratuit et Open Source qui propose une solution simple pour garder une trace de ses dépenses et de ses différentes opérations (chèques, virements, etc.), établir un échéancier, planifier une opération multi-comptes ou présenter un état de la situation financière.
Il y a deux façons d'utiliser Grisbi: soit saisir les données de ses différents comptes bancaires, ce qui peut être fastidieux vu du nombre de paramètres pris en compte, soit importer ses données bancaires au format QIF ou OFX depuis le site internet de sa banque.
Pour les débutants ou ceux qui veulent exploiter à fond ses possibilités, sachez que l?aide en ligne est complète, en français et bien réalisée.
L?interface du logiciel est austère. Fonctionnelle avant tout, elle s'appuie sur une présentation aérée et des rubriques rangées par onglets. Hélas, Grisbi connaît quelques petits bugs et il ne propose pas de sécuriser vos fichiers par mot de passe.
Autre bémol, Grisbi ne permet pas d'afficher vos finances sous forme de graphiques. Magie de l?Open Source, un plug-in est heureusement disponible pour remédier à ce manque: Grisbi Graph Tool permet de créer de jolis graphiques pour modéliser ses données bancaires.
En somme, Grisbi est un programme qui remplit correctement sa mission: donner un aperçu clair de l?état de ses finances. Un programme d'aspect pas très attrayant, mais efficace et fiable.
Formats supportés par Grisbi:
QIF, OCX, Gnucash
OS compatible avec Grisbi:
OS: Win98/98SE/Me/2000/XP
Grisbi est un logiciel de finances personnelles gratuit et Open Source qui propose une solution simple pour garder une trace de ses dépenses et de ses différentes opérations (chèques, virements, etc.), établir un échéancier, planifier une opération multi-comptes ou présenter un état de la situation financière.
Il y a deux façons d'utiliser Grisbi: soit saisir les données de ses différents comptes bancaires, ce qui peut être fastidieux vu du nombre de paramètres pris en compte, soit importer ses données bancaires au format QIF ou OFX depuis le site internet de sa banque.
Pour les débutants ou ceux qui veulent exploiter à fond ses possibilités, sachez que l?aide en ligne est complète, en français et bien réalisée.
L?interface du logiciel est austère. Fonctionnelle avant tout, elle s'appuie sur une présentation aérée et des rubriques rangées par onglets. Hélas, Grisbi connaît quelques petits bugs et il ne propose pas de sécuriser vos fichiers par mot de passe.
Autre bémol, Grisbi ne permet pas d'afficher vos finances sous forme de graphiques. Magie de l?Open Source, un plug-in est heureusement disponible pour remédier à ce manque: Grisbi Graph Tool permet de créer de jolis graphiques pour modéliser ses données bancaires.
En somme, Grisbi est un programme qui remplit correctement sa mission: donner un aperçu clair de l?état de ses finances. Un programme d'aspect pas très attrayant, mais efficace et fiable.
Formats supportés par Grisbi:
QIF, OCX, Gnucash
OS compatible avec Grisbi:
OS: Win98/98SE/Me/2000/XP
Telecharger
Megacubo 7.0.3
Megacubo 7.0.3
Megacubo, programme d'origine brésilienne, est un agrégateur de flux vidéo en ligne.
Il regroupe au sein d'une même interface un nombre incroyable de streams vidéos, transformant alors votre PC en un centre multimédia, une sorte de poste de télévision nouvelle génération.
Vous avez accès en quelques clics à toutes les télés du monde. Les chaînes sont organisées par pays, par qualité de connexion, par type de flux (Flash, Quicktime, Windows Media...) et par thématiques (sports, musique, éducation, etc.).
Bref, un sacré classement qui demande pas mal d'heures de navigation pour en venir à bout.
Megacubo offre en plus un lecteur "exportable" qui permet s'affranchir de l'interface complète pour ne garder que le flux vidéo. Une bonne option pour garder un oeil sur la télé tout en faisant autre chose.
Au final Megacubo risque de devenir de plus en plus intéressant, même si la qualité des flux doit encore s'améliorer pour qu'il puisse réellement remplacer notre bon vieux poste.
OS compatible avec Megacubo:
OS: Win2000/XP/2003/Vista
Megacubo, programme d'origine brésilienne, est un agrégateur de flux vidéo en ligne.
Il regroupe au sein d'une même interface un nombre incroyable de streams vidéos, transformant alors votre PC en un centre multimédia, une sorte de poste de télévision nouvelle génération.
Vous avez accès en quelques clics à toutes les télés du monde. Les chaînes sont organisées par pays, par qualité de connexion, par type de flux (Flash, Quicktime, Windows Media...) et par thématiques (sports, musique, éducation, etc.).
Bref, un sacré classement qui demande pas mal d'heures de navigation pour en venir à bout.
Megacubo offre en plus un lecteur "exportable" qui permet s'affranchir de l'interface complète pour ne garder que le flux vidéo. Une bonne option pour garder un oeil sur la télé tout en faisant autre chose.
Au final Megacubo risque de devenir de plus en plus intéressant, même si la qualité des flux doit encore s'améliorer pour qu'il puisse réellement remplacer notre bon vieux poste.
OS compatible avec Megacubo:
OS: Win2000/XP/2003/Vista
Telecharger
Docteur House Fond d'écran
Docteur House Fond d'écran
Mais qu?essaie de faire le Docteur House avec ces défibrillateurs? Repasser une chemise? Se donner un bon coup de fouet avant d'affronter une matinée difficile ?
Episode après épisode, saison après saison, le Docteur House n?en finit pas de captiver les téléspectateurs? Arrogant, misanthrope, cynique ou lunatique, les qualificatifs ne manquent pas pour ce chirurgien hors du commun.
Incarné par le flegmatique Hugh Laurie, le médecin boiteux enchaîne des enquêtes médicales plus ardues les unes que les autres. Son succès ne se dément pas puisque diffusée sur TF1, la série bat des records d?audimat.
Un fond d?écran d?excellente facture qui vous laisse en compagnie du médecin le plus charismatique du paf !
OS compatible avec Docteur House Fond d'écran:
OS: Win95/98/98SE/Me/2000/NT/XP/2003/Vista/7
Configuration minimale:
Résolution: 1280 x 960
Mais qu?essaie de faire le Docteur House avec ces défibrillateurs? Repasser une chemise? Se donner un bon coup de fouet avant d'affronter une matinée difficile ?
Episode après épisode, saison après saison, le Docteur House n?en finit pas de captiver les téléspectateurs? Arrogant, misanthrope, cynique ou lunatique, les qualificatifs ne manquent pas pour ce chirurgien hors du commun.
Incarné par le flegmatique Hugh Laurie, le médecin boiteux enchaîne des enquêtes médicales plus ardues les unes que les autres. Son succès ne se dément pas puisque diffusée sur TF1, la série bat des records d?audimat.
Un fond d?écran d?excellente facture qui vous laisse en compagnie du médecin le plus charismatique du paf !
OS compatible avec Docteur House Fond d'écran:
OS: Win95/98/98SE/Me/2000/NT/XP/2003/Vista/7
Configuration minimale:
Résolution: 1280 x 960
Telecharger
Star Trek: pack de fonds d?écrans
Star Trek: pack de fonds d?écrans
Star Trek, la série la plus insubmersible de l?histoire de la télévision, revient régulièrement sur le devant de la scène avec des nouvelles versions. En mai 2009, c?était Star Trek 11 qui fit le bonheur des Trekkies, ces fans inconditionnels.
L?occasion de se remémorer les plus belles heures des aventures de l?USS Enterprise, avec ce pack de 6 fonds d?écran qui propose des images de la série des années 60.
Ce pack gratuit installe automatiquement un petit logiciel permettant de gérer vos fonds d?écran en les changeant à intervalles réguliers. Il propose également d?afficher un calendrier paramétrable dans un coin de l?écran.
Ce pack inclut des images de Spock, du capitaine Kirk et de Jean-Luc Picard, ainsi que des personnages secondaires tels que Uhura, Data ou la reine Borg. On peut aussi y admirer l'USS Enterprise en vol et un vaisseau Klingon au décollage.
Explorez la galaxie avec Spock, le capitaine Kirk et consorts! Un pack de 6 fonds d?écran pour les trekkies, et les autres?
Notes:
Vous devez installer le programme Screenthemes pour utiliser ce pack de fond d'écran. Il faut ensuite
enregistrer un email pour que le programme fonctionne.
Limitations:
6 images gratuites
OS compatible avec Star Trek: pack de fonds d?écrans:
OS: Win98/98SE/Me/2000/NT/XP/2003/Vista
Star Trek, la série la plus insubmersible de l?histoire de la télévision, revient régulièrement sur le devant de la scène avec des nouvelles versions. En mai 2009, c?était Star Trek 11 qui fit le bonheur des Trekkies, ces fans inconditionnels.
L?occasion de se remémorer les plus belles heures des aventures de l?USS Enterprise, avec ce pack de 6 fonds d?écran qui propose des images de la série des années 60.
Ce pack gratuit installe automatiquement un petit logiciel permettant de gérer vos fonds d?écran en les changeant à intervalles réguliers. Il propose également d?afficher un calendrier paramétrable dans un coin de l?écran.
Ce pack inclut des images de Spock, du capitaine Kirk et de Jean-Luc Picard, ainsi que des personnages secondaires tels que Uhura, Data ou la reine Borg. On peut aussi y admirer l'USS Enterprise en vol et un vaisseau Klingon au décollage.
Explorez la galaxie avec Spock, le capitaine Kirk et consorts! Un pack de 6 fonds d?écran pour les trekkies, et les autres?
Notes:
Vous devez installer le programme Screenthemes pour utiliser ce pack de fond d'écran. Il faut ensuite
enregistrer un email pour que le programme fonctionne.
Limitations:
6 images gratuites
OS compatible avec Star Trek: pack de fonds d?écrans:
OS: Win98/98SE/Me/2000/NT/XP/2003/Vista
Telecharger
Futurama ? Bender et Fry Fond d'écran
Futurama ? Bender et Fry Fond d'écran
Futurama a vu le jour en 1999 de la main de Matt Groening, l'inventeur des Simpson. Si la série du futur n?a jamais atteint le succès de sa s?ur aînée, elle a su attirer un noyau de fans inconditionnels grâce à son ton décalé et son humour au vitriol.
Futurama dépeint les aventures de Fry, un new-yorkais du XXème siècle, projeté par erreur 1000 ans plus tard. Parmi ses amis, on trouve un robot alcoolique et bagarreur (Bender) et une cyclope sexy (Leela)?
La série affiche déjà plusieurs long-métrages au compteur, dont le dernier en date, «Vous prendrez bien un dernier vert?», d'où est tirée cette scène de poker entre Fry et Bender.
Les deux compères semblent tout miser sur ce All-in. Fry a-t-il ses chances face au robot vicelard? Le DVD de Futurama a la réponse? En attendant, voici un fond d?écran plutôt sympa pour les fans de la série!
OS compatible avec Futurama ? Bender et Fry Fond d'écran:
OS: Win95/98/98SE/Me/2000/NT/XP/2003/Vista/7
Futurama a vu le jour en 1999 de la main de Matt Groening, l'inventeur des Simpson. Si la série du futur n?a jamais atteint le succès de sa s?ur aînée, elle a su attirer un noyau de fans inconditionnels grâce à son ton décalé et son humour au vitriol.
Futurama dépeint les aventures de Fry, un new-yorkais du XXème siècle, projeté par erreur 1000 ans plus tard. Parmi ses amis, on trouve un robot alcoolique et bagarreur (Bender) et une cyclope sexy (Leela)?
La série affiche déjà plusieurs long-métrages au compteur, dont le dernier en date, «Vous prendrez bien un dernier vert?», d'où est tirée cette scène de poker entre Fry et Bender.
Les deux compères semblent tout miser sur ce All-in. Fry a-t-il ses chances face au robot vicelard? Le DVD de Futurama a la réponse? En attendant, voici un fond d?écran plutôt sympa pour les fans de la série!
OS compatible avec Futurama ? Bender et Fry Fond d'écran:
OS: Win95/98/98SE/Me/2000/NT/XP/2003/Vista/7
Telecharger
Star Trek 11 Fond d?écran
Star Trek 11 Fond d?écran
La mythique odyssée dévoile sa genèse avec Star Trek 11, dernier rejeton d?un impressionnant univers de 5 séries et 11 films?
Sorti en mai 2009, il propose de revivre les évènements antérieurs à la série originale. On y découvre la rencontre entre Spock et le capitaine Kirk, alors tout jeunes, sur l?U.S.S. Enterprise.
Star Trek 11 a bénéficié d?un casting de luxe, puisque Chris Pine (Mise à prix, Mes plus belles années?), Zachary Quinto (Heroes, Charmed?) ou encore John Cho (American Pie, American Beauty?) figurent au générique.
Le site officiel du film propose de nombreux fonds d?écran en haute définition, dont celui-ci qui réunit les acteurs principaux autour du jeune capitaine Kirk.
OS compatible avec Star Trek 11 Fond d?écran:
OS: Win95/98/98SE/Me/2000/NT/XP/2003/Vista/7
Configuration minimale:
Résolution: 1920 x 1200
La mythique odyssée dévoile sa genèse avec Star Trek 11, dernier rejeton d?un impressionnant univers de 5 séries et 11 films?
Sorti en mai 2009, il propose de revivre les évènements antérieurs à la série originale. On y découvre la rencontre entre Spock et le capitaine Kirk, alors tout jeunes, sur l?U.S.S. Enterprise.
Star Trek 11 a bénéficié d?un casting de luxe, puisque Chris Pine (Mise à prix, Mes plus belles années?), Zachary Quinto (Heroes, Charmed?) ou encore John Cho (American Pie, American Beauty?) figurent au générique.
Le site officiel du film propose de nombreux fonds d?écran en haute définition, dont celui-ci qui réunit les acteurs principaux autour du jeune capitaine Kirk.
OS compatible avec Star Trek 11 Fond d?écran:
OS: Win95/98/98SE/Me/2000/NT/XP/2003/Vista/7
Configuration minimale:
Résolution: 1920 x 1200
Telecharger
Domino Zune Video Converter 1.20.712
Domino Zune Video Converter 1.20.712
Domino Zune Video Converter permet à tout un chacun de passer ses vidéos préférées sur son lecteur Zune. Pour ceux qui ne vivent pas sur le continent américain, il s'agit d'un concurrent de l'iPod conçu par Microsoft.
Facile à prendre en main, Domino Zune Video Converter vous permet d'ajouter une ou plusieurs vidéos à une liste centrale dans l'interface. Pour aller droit au but, il suffit de cliquer sur le bouton "Start" pour lancer la conversion.
Les utilisateurs les plus avertis peuvent toutefois régler manuellement quelques paramètres comme la résolution, le nombre d'images par seconde, la fréquence d'échantillonnage de la bande sonore.
Enfin, Domino Zune Video Converter présente des outils qui permettent notamment de couper le début et la fin d'une vidéo (un générique trop long par exemple), de changer le format de lecture (16:9 ou 4:3), de rogner les bords ou d'ajouter une image en filigrane.
Cependant, ces options ne sont pas très pratiques à manipuler. Sans aperçu, on retaille l'image à l'aveugle et couper un générique se fait manuellement sur une timeline sans grande précision. Dommage.
Domino Zune Video Converter est très simple à utiliser et rapide. De quoi rendre bien des services aux quelques possesseurs de Zune sur la planète.
Formats supportés par Domino Zune Video Converter:
Import: AVI, MP4,DivX, XviD, MPEG, WMV, MOV, ASF, 3GP, 3GPP, FLV, SWF, H.264, RM, VOB, HD
Export: MP4, WMV, MOV (vidéo), MP3, WMA, AAC, M4A (audio)
Limitations:
Conversion limitée à 3 minutes.
Une conversion à la fois.
Ajout d'une watermark par l'auteur.
OS compatible avec Domino Zune Video Converter:
OS: Win2000/XP/2003/Vista
Domino Zune Video Converter permet à tout un chacun de passer ses vidéos préférées sur son lecteur Zune. Pour ceux qui ne vivent pas sur le continent américain, il s'agit d'un concurrent de l'iPod conçu par Microsoft.
Facile à prendre en main, Domino Zune Video Converter vous permet d'ajouter une ou plusieurs vidéos à une liste centrale dans l'interface. Pour aller droit au but, il suffit de cliquer sur le bouton "Start" pour lancer la conversion.
Les utilisateurs les plus avertis peuvent toutefois régler manuellement quelques paramètres comme la résolution, le nombre d'images par seconde, la fréquence d'échantillonnage de la bande sonore.
Enfin, Domino Zune Video Converter présente des outils qui permettent notamment de couper le début et la fin d'une vidéo (un générique trop long par exemple), de changer le format de lecture (16:9 ou 4:3), de rogner les bords ou d'ajouter une image en filigrane.
Cependant, ces options ne sont pas très pratiques à manipuler. Sans aperçu, on retaille l'image à l'aveugle et couper un générique se fait manuellement sur une timeline sans grande précision. Dommage.
Domino Zune Video Converter est très simple à utiliser et rapide. De quoi rendre bien des services aux quelques possesseurs de Zune sur la planète.
Formats supportés par Domino Zune Video Converter:
Import: AVI, MP4,DivX, XviD, MPEG, WMV, MOV, ASF, 3GP, 3GPP, FLV, SWF, H.264, RM, VOB, HD
Export: MP4, WMV, MOV (vidéo), MP3, WMA, AAC, M4A (audio)
Limitations:
Conversion limitée à 3 minutes.
Une conversion à la fois.
Ajout d'une watermark par l'auteur.
OS compatible avec Domino Zune Video Converter:
OS: Win2000/XP/2003/Vista
Telecharger
IT Network: Faxing Capabilities
If you sense resistance during the IT network sales cycle, listen very carefully to the prospect's objections. Many times, they like what they hear, but small business owners need to hear three or four different opinions in order to bolster their confidence. Take time to understand exactly what's driving the investment in this planned IT network.
In small business IT consulting many of your prospects and clients will have similar IT network needs.
Consider Faxing Needs
Most small business employees have similar experiences when it comes to sending faxes. When a document that needs to be faxed is complete, the employee prints the document and cover sheet, gets up from the desk, walks over to the fax machine, and stands there waiting on line until the fax machine is available. This creates an enormous productivity bottleneck.
Ask Questions about IT Network Needs
To understand the cost of not addressing the single Internet access account or fax machine dilemma, talk with the small business owner. Here's a sample line of questioning you can use to shed some light on the real costs and limitations of sending faxes through a fax machine:
How many people in the office send faxes regularly?
What's the average number of pages in each person's fax?
Does each person typically create a cover page to go along with each fax?
How many faxes a day are sent out?
How often are people sending the same fax to multiple recipients?
How far away is the fax machine from most people's desks?
How many hours are wasted on a daily basis with people waiting around to send outgoing faxes?
How many hours does this translate into annually?
What's the average hourly wage of the people impacted by this productivity issue?
The Bottom Line about IT Networks
It is a good idea to have a blank contract with you when you ask these questions. Why? Because it's very hard for any rational small business owner or manager to refute your
Copyright MMI-MMVI, Computer Consultants Secrets. All Worldwide Rights Reserved. {Attention Publishers: Live hyperlink in author resource box required for copyright compliance}
In small business IT consulting many of your prospects and clients will have similar IT network needs.
Consider Faxing Needs
Most small business employees have similar experiences when it comes to sending faxes. When a document that needs to be faxed is complete, the employee prints the document and cover sheet, gets up from the desk, walks over to the fax machine, and stands there waiting on line until the fax machine is available. This creates an enormous productivity bottleneck.
Ask Questions about IT Network Needs
To understand the cost of not addressing the single Internet access account or fax machine dilemma, talk with the small business owner. Here's a sample line of questioning you can use to shed some light on the real costs and limitations of sending faxes through a fax machine:
How many people in the office send faxes regularly?
What's the average number of pages in each person's fax?
Does each person typically create a cover page to go along with each fax?
How many faxes a day are sent out?
How often are people sending the same fax to multiple recipients?
How far away is the fax machine from most people's desks?
How many hours are wasted on a daily basis with people waiting around to send outgoing faxes?
How many hours does this translate into annually?
What's the average hourly wage of the people impacted by this productivity issue?
The Bottom Line about IT Networks
It is a good idea to have a blank contract with you when you ask these questions. Why? Because it's very hard for any rational small business owner or manager to refute your
Copyright MMI-MMVI, Computer Consultants Secrets. All Worldwide Rights Reserved. {Attention Publishers: Live hyperlink in author resource box required for copyright compliance}
Labels: IT network, IT-network
All About the HP Colour LaserJet 3600n
Design
With a price tag of £480, the new HP Colour LaserJet 3600n is small, weighs 27kg and has deep handholds, so one person can carry it easily. At 15.7 by 15.7 by 17.7 inches (HWD), this laser printer can easily fit into a busy home office or individual office in a large company, should you need this level of speed and paper capacity. Its simplistic design makes jam-clearing and maintenance uncomplicated. However, the wall and hinges don’t appear to be too sturdy. It can be setup in the standard manner applicable to its class of printers, and the network installation routine is fully automated.
Paper Handling
The HP Colour LaserJet 3600n offers high-speed performance, with an engine rated at 17 pages per minute (ppm) for both colour and monochrome, fairly good graphics quality, even better text, and photographs that are good enough for client newsletters and the like. HP has also included an Ethernet connection for easy sharing over a network.
However, the main paper tray feels a little unsteady and has nothing to stop it when pulled out, so users should be careful not to drop it. The paper-length and paper-width guides are easy to adjust. The printer has a 100-sheet auxiliary feed in addition to the enclosed 250-sheet tray. You can boost this number to 850 by adding a 500-sheet feeder for £280.
Features
A two-line backlit LCD screen on the 3600n's top panel displays a complete set of menus, which is easy to navigate with buttons for going through menus, selecting items and going back.
This printer comes with 64MB of memory and unfortunately you cannot expand that, nor add a duplexer, which makes expansion options very limited. If you need the extra memory, then consider HP's 3600dn, a £670 model with a duplexer and twice the memory.
Performance
The 3600n prints black text at a reasonable 13ppm and colour graphics a bit faster, at 13.5ppm. In contrast, the Lexmark C522n prints text at 14.2ppm and graphics at 12.3ppm. However, if saving money is your real priority, and you don't print much colour, consider Ricoh Aficio G700, which prints fine text at 12.1ppm but misses the cut on graphics speed and quality.
The 3600n disappoints the user with its print quality. In a few tests carried out by popular technology magazines, the text looked greyish instead of black, showed some roughness in large point sizes, and lost fine strokes. This is also the case with some of the 4-point output, which looked slightly grey, rather than black. Colour graphics did not negotiate shading ramps smoothly and produced blockish transitions. However, the printer makes the cut with colour accuracy and detail. Additionally, it prints greyscale photos very well, with fine detail and smooth shading.
Graphics are easily good enough for internal business use, but not satisfactory for handing out to important clients or customers. The most important issue in a number of tests was misregistration, with the colours slightly out of alignment. It resulted in a noticeable white gap between some blocks of colours, around some lines, and around some colour text on a colour background. Thin lines also tended to disappear. Additionally, colours tend to shift toward darker shades, losing detail in dark areas and making some colours look muddy.
On the whole, the 3600n's text output has high enough quality for most purposes. Unless you have an unusual need for small font sizes, it is unlikely that you will print any text that the 3600n can't handle. Lexmark's similar C522 sells for around £100 less and offers equal speed and better quality, though Lexmark's cost per page is slightly higher than HP's and the difference may add up over time.
With a price tag of £480, the new HP Colour LaserJet 3600n is small, weighs 27kg and has deep handholds, so one person can carry it easily. At 15.7 by 15.7 by 17.7 inches (HWD), this laser printer can easily fit into a busy home office or individual office in a large company, should you need this level of speed and paper capacity. Its simplistic design makes jam-clearing and maintenance uncomplicated. However, the wall and hinges don’t appear to be too sturdy. It can be setup in the standard manner applicable to its class of printers, and the network installation routine is fully automated.
Paper Handling
The HP Colour LaserJet 3600n offers high-speed performance, with an engine rated at 17 pages per minute (ppm) for both colour and monochrome, fairly good graphics quality, even better text, and photographs that are good enough for client newsletters and the like. HP has also included an Ethernet connection for easy sharing over a network.
However, the main paper tray feels a little unsteady and has nothing to stop it when pulled out, so users should be careful not to drop it. The paper-length and paper-width guides are easy to adjust. The printer has a 100-sheet auxiliary feed in addition to the enclosed 250-sheet tray. You can boost this number to 850 by adding a 500-sheet feeder for £280.
Features
A two-line backlit LCD screen on the 3600n's top panel displays a complete set of menus, which is easy to navigate with buttons for going through menus, selecting items and going back.
This printer comes with 64MB of memory and unfortunately you cannot expand that, nor add a duplexer, which makes expansion options very limited. If you need the extra memory, then consider HP's 3600dn, a £670 model with a duplexer and twice the memory.
Performance
The 3600n prints black text at a reasonable 13ppm and colour graphics a bit faster, at 13.5ppm. In contrast, the Lexmark C522n prints text at 14.2ppm and graphics at 12.3ppm. However, if saving money is your real priority, and you don't print much colour, consider Ricoh Aficio G700, which prints fine text at 12.1ppm but misses the cut on graphics speed and quality.
The 3600n disappoints the user with its print quality. In a few tests carried out by popular technology magazines, the text looked greyish instead of black, showed some roughness in large point sizes, and lost fine strokes. This is also the case with some of the 4-point output, which looked slightly grey, rather than black. Colour graphics did not negotiate shading ramps smoothly and produced blockish transitions. However, the printer makes the cut with colour accuracy and detail. Additionally, it prints greyscale photos very well, with fine detail and smooth shading.
Graphics are easily good enough for internal business use, but not satisfactory for handing out to important clients or customers. The most important issue in a number of tests was misregistration, with the colours slightly out of alignment. It resulted in a noticeable white gap between some blocks of colours, around some lines, and around some colour text on a colour background. Thin lines also tended to disappear. Additionally, colours tend to shift toward darker shades, losing detail in dark areas and making some colours look muddy.
On the whole, the 3600n's text output has high enough quality for most purposes. Unless you have an unusual need for small font sizes, it is unlikely that you will print any text that the 3600n can't handle. Lexmark's similar C522 sells for around £100 less and offers equal speed and better quality, though Lexmark's cost per page is slightly higher than HP's and the difference may add up over time.
Labels: greyscale photos, HP Colour LaserJet, Lexmark, pages per minute, paper, ppm, Ricoh Aficio
Fast MP4 3GP AVI MPG WMV RM MOV FLV Converter 5.0
Fast MP4 3GP AVI MPG WMV RM MOV FLV Converter 5.0
Avec un nom comme celui-ci, Fast MP4 3GP AVI MPG WMV MOV FLV Converter se veut sans doute le logiciel au nom le plus imprononçable, mais peut-être aussi l'un des plus complets.
Ce logiciel (non, je ne répèterai pas son nom) vous permet de convertir à peu près tous les formats de vidéos existants en de nouveaux fichiers lisibles sur de nombreuses plates-formes. On compte parmi ses supports de destination les iPod, iPhone, PS3, PSP, BlackBerry, Zune, AppleTV et XBox 360.
Les classiques Windows Media Player, QuickTime et autres Flash ne sont pas oubliés pour autant.
Très simple à prendre en main, ce programme vous permet de choisir un profil de conversion dans la liste proposée et de faire varier quelques paramètres concernant le son (bitrate, fréquence d'échantillonnage, etc.) et bien sûr la vidéo (FPS, format de l'image, codecs, etc.).
Si vous avez téléchargé des sous-titres, vous pouvez même les incorporer sans difficulté.
Fast MP4 3GP AVI MPG WMV MOV FLV Converter a beau avoir un nom à coucher dehors, il n'en reste pas moins un logiciel de conversion efficace et plutôt complet.
Formats supportés par Fast MP4 3GP AVI MPG WMV RM MOV FLV Converter:
Formats d'entrées : AVI, MPG, MPEG, VOB, WMV, MP4, M4, MOV, QT, 3GP, DAT, OGM, RM, RMVB, FLV, MKV, DVR-MS, TS, AMV
Limitations:
Un fichier à la fois.
2 minutes de conversion maximum par fichier.
OS compatible avec Fast MP4 3GP AVI MPG WMV RM MOV FLV Converter:
OS: Win98/98SE/Me/2000/XP/2003/Vista
Telecharger
Avec un nom comme celui-ci, Fast MP4 3GP AVI MPG WMV MOV FLV Converter se veut sans doute le logiciel au nom le plus imprononçable, mais peut-être aussi l'un des plus complets.
Ce logiciel (non, je ne répèterai pas son nom) vous permet de convertir à peu près tous les formats de vidéos existants en de nouveaux fichiers lisibles sur de nombreuses plates-formes. On compte parmi ses supports de destination les iPod, iPhone, PS3, PSP, BlackBerry, Zune, AppleTV et XBox 360.
Les classiques Windows Media Player, QuickTime et autres Flash ne sont pas oubliés pour autant.
Très simple à prendre en main, ce programme vous permet de choisir un profil de conversion dans la liste proposée et de faire varier quelques paramètres concernant le son (bitrate, fréquence d'échantillonnage, etc.) et bien sûr la vidéo (FPS, format de l'image, codecs, etc.).
Si vous avez téléchargé des sous-titres, vous pouvez même les incorporer sans difficulté.
Fast MP4 3GP AVI MPG WMV MOV FLV Converter a beau avoir un nom à coucher dehors, il n'en reste pas moins un logiciel de conversion efficace et plutôt complet.
Formats supportés par Fast MP4 3GP AVI MPG WMV RM MOV FLV Converter:
Formats d'entrées : AVI, MPG, MPEG, VOB, WMV, MP4, M4, MOV, QT, 3GP, DAT, OGM, RM, RMVB, FLV, MKV, DVR-MS, TS, AMV
Limitations:
Un fichier à la fois.
2 minutes de conversion maximum par fichier.
OS compatible avec Fast MP4 3GP AVI MPG WMV RM MOV FLV Converter:
OS: Win98/98SE/Me/2000/XP/2003/Vista
Telecharger
Google Calendar Sync 0.9.3.5
Google Calendar Sync 0.9.3.5
Mon premier est probablement l'application de messagerie et de calendrier la plus répandue au monde. Mon second représente l'avenir des logiciels avec une application de calendrier en ligne parfaitement intégrée avec des services de mail, de cartographie et de partage de documents.
Mon tout s'appelle Google Calendar Sync...
Entrez votre identifiant Google et votre mot de passe puis choisissez le type de synchronisation souhaitée: le tour est joué. Vous avez le choix de synchroniser complètement les deux agendas avec la méthode 2-way ou d'un agenda vers l'autre avec la méthode 1-way. Vous pouvez changer ce réglage à tout moment depuis une icône logée dans la barre de notification.
Lors des tests, la synchronisation a parfaitement fonctionné pour des tâches entrées manuellement dans l'agenda. En revanche, les rendez-vous acceptés sur invitation d'un collègue dans Outlook ne se retrouvent pas sur Google Calendar.
Dommage, car le partage de planning est une des fonctionnalités les plus utiles dans un cadre professionnel.
Enfin une solution pour combiner les qualités des agendas de deux géants de l'informatique personnelle. Une excellente nouvelle même si la synchronisation n'est pas encore parfaite.
OS compatible avec Google Calendar Sync:
OS: Windows XP
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Mon premier est probablement l'application de messagerie et de calendrier la plus répandue au monde. Mon second représente l'avenir des logiciels avec une application de calendrier en ligne parfaitement intégrée avec des services de mail, de cartographie et de partage de documents.
Mon tout s'appelle Google Calendar Sync...
Entrez votre identifiant Google et votre mot de passe puis choisissez le type de synchronisation souhaitée: le tour est joué. Vous avez le choix de synchroniser complètement les deux agendas avec la méthode 2-way ou d'un agenda vers l'autre avec la méthode 1-way. Vous pouvez changer ce réglage à tout moment depuis une icône logée dans la barre de notification.
Lors des tests, la synchronisation a parfaitement fonctionné pour des tâches entrées manuellement dans l'agenda. En revanche, les rendez-vous acceptés sur invitation d'un collègue dans Outlook ne se retrouvent pas sur Google Calendar.
Dommage, car le partage de planning est une des fonctionnalités les plus utiles dans un cadre professionnel.
Enfin une solution pour combiner les qualités des agendas de deux géants de l'informatique personnelle. Une excellente nouvelle même si la synchronisation n'est pas encore parfaite.
OS compatible avec Google Calendar Sync:
OS: Windows XP
Telecharger
Windows Live OneCare 2.5.2900.24
Windows Live OneCare 2.5.2900.24
Avec Windows Live OneCare, Microsoft offre enfin un complément tout-en-un pour protéger ses systèmes d'exploitation, une solution censée prémunir l'ordinateur des virus, chevaux de Troie et autres intrusions.
Depuis le Service Pack 2 pour XP, Microsoft avait intégré dans Windows un Centre de sécurité et armé son OS d'un pare-feu. Une protection contre les virus et les trojans qui reste bien légère...
C'est cette critique qui a poussé Microsoft à produire Windows Live OneCare, un pack complet (et payant) comprenant un anti-virus, un anti-spyware et un outil de sauvegarde. Le programme fonctionne sans soucis particulier et permet de scanner la machine à la recherche des virus et malwares.
Windows Live OneCare peut se minimiser dans le systray et fonctionne alors en tâche de fond. Il télécharge les mises à jour de sa base de données de protection dès qu'une nouvelle version est disponible.
Windows Live OneCare offre aussi des outils connexes comme un filtre anti-hameçonnage (phishing) et des fonctionnalités d'optimisation du PC (défragmentation, suppression des fichiers inutiles, etc.). Une fonction qu'on aimerait avoir par défaut dans Windows, sans avoir à payer en plus...
Au final, Microsoft offre ici une solution complète qui a l'avantage de s'intégrer parfaitement avec l'environnement Windows. On doute cependant qu'elle puisse rivaliser avec des solutions 100% spécialisées dans la protection comme Avira ou Kaspersky.
Notes:
Le fichier téléchargé est un installateur, qui chargera lui-même le programme complet à installer.
Limitations:
90 jours d'essai
OS compatible avec Windows Live OneCare:
OS: WinXP/Vista
Configuration minimale:
Processeur: 300 MHzMémoire: 256 MoInternet Explorer 6.0 Windows XP + Service Pack 2
Connexion Internet
Telecharger
Avec Windows Live OneCare, Microsoft offre enfin un complément tout-en-un pour protéger ses systèmes d'exploitation, une solution censée prémunir l'ordinateur des virus, chevaux de Troie et autres intrusions.
Depuis le Service Pack 2 pour XP, Microsoft avait intégré dans Windows un Centre de sécurité et armé son OS d'un pare-feu. Une protection contre les virus et les trojans qui reste bien légère...
C'est cette critique qui a poussé Microsoft à produire Windows Live OneCare, un pack complet (et payant) comprenant un anti-virus, un anti-spyware et un outil de sauvegarde. Le programme fonctionne sans soucis particulier et permet de scanner la machine à la recherche des virus et malwares.
Windows Live OneCare peut se minimiser dans le systray et fonctionne alors en tâche de fond. Il télécharge les mises à jour de sa base de données de protection dès qu'une nouvelle version est disponible.
Windows Live OneCare offre aussi des outils connexes comme un filtre anti-hameçonnage (phishing) et des fonctionnalités d'optimisation du PC (défragmentation, suppression des fichiers inutiles, etc.). Une fonction qu'on aimerait avoir par défaut dans Windows, sans avoir à payer en plus...
Au final, Microsoft offre ici une solution complète qui a l'avantage de s'intégrer parfaitement avec l'environnement Windows. On doute cependant qu'elle puisse rivaliser avec des solutions 100% spécialisées dans la protection comme Avira ou Kaspersky.
Notes:
Le fichier téléchargé est un installateur, qui chargera lui-même le programme complet à installer.
Limitations:
90 jours d'essai
OS compatible avec Windows Live OneCare:
OS: WinXP/Vista
Configuration minimale:
Processeur: 300 MHzMémoire: 256 MoInternet Explorer 6.0 Windows XP + Service Pack 2
Connexion Internet
Telecharger
NetWorx 4.9.5
NetWorx 4.9.5
Networx est un utilitaire gratuit pour mesurer et contrôler votre connexion réseau.
Connaître l'utilisation de sa connexion en temps réel peut être utile pour diagnostiquer des problèmes réseau ou détecter une activité suspecte.
Avec Networx vous disposez d'un ensemble d'outils complets directement accessibles d'un clic sur son icône dans la zone de notification système.
Parmi les utilitaires fournis, on retrouve des classiques comme Ping, Traceroute et Netstat habillés d'une interface graphique qui les rend beaucoup plus conviviaux que leur version en ligne de commande.
Networx offre aussi un utilitaire de mesure en temps réel de la bande passante utilisée avec les taux moyens, maximum et cumulés en upload comme en download.
Pour une supervision de votre connexion sur la durée, Networx permet d'éditer des rapports complets sur une base quotidienne, hebdomadaire ou mensuelle. Vous pouvez aussi définir des périodes sur mesure.
Très précis, ces rapports vous permettent de connaître les volumes de données échangés jour par jour et même heure par heure.
Enfin, Networx comporte un système d'alerte qui permet de déclencher une action (alerte visuelle ou sonore, lancement d'un programme, extinction de l'ordinateur, etc.) en fonction des volumes de données échangés sur une période définie.
Simple, gratuit et complet, Networx est un bon utilitaire pour suivre au plus près votre connexion réseau.
OS compatible avec NetWorx:
OS: Win2000/XP/2003/Vista
Telecharger
Networx est un utilitaire gratuit pour mesurer et contrôler votre connexion réseau.
Connaître l'utilisation de sa connexion en temps réel peut être utile pour diagnostiquer des problèmes réseau ou détecter une activité suspecte.
Avec Networx vous disposez d'un ensemble d'outils complets directement accessibles d'un clic sur son icône dans la zone de notification système.
Parmi les utilitaires fournis, on retrouve des classiques comme Ping, Traceroute et Netstat habillés d'une interface graphique qui les rend beaucoup plus conviviaux que leur version en ligne de commande.
Networx offre aussi un utilitaire de mesure en temps réel de la bande passante utilisée avec les taux moyens, maximum et cumulés en upload comme en download.
Pour une supervision de votre connexion sur la durée, Networx permet d'éditer des rapports complets sur une base quotidienne, hebdomadaire ou mensuelle. Vous pouvez aussi définir des périodes sur mesure.
Très précis, ces rapports vous permettent de connaître les volumes de données échangés jour par jour et même heure par heure.
Enfin, Networx comporte un système d'alerte qui permet de déclencher une action (alerte visuelle ou sonore, lancement d'un programme, extinction de l'ordinateur, etc.) en fonction des volumes de données échangés sur une période définie.
Simple, gratuit et complet, Networx est un bon utilitaire pour suivre au plus près votre connexion réseau.
OS compatible avec NetWorx:
OS: Win2000/XP/2003/Vista
Telecharger
Picture Collage Maker Pro 2.0.7
Picture Collage Maker Pro 2.0.7
Picture Collage Maker est un logiciel de création permettant de réaliser des compositions photo sans avoir besoin d'heures de formation sur des logiciels compliqués comme Photoshop ou Photofiltre.
Picture Collage Maker est très simple à prendre en main. Vous commencez par définir un modèle de document à produire parmi la longue liste de gabarits proposés.
Vous avez le choix entre des modèles de calendriers, des assemblages simples, des mélanges entre photos et cliparts, etc.
L'étape suivante consiste à placer vos photos sur le modèle choisi en naviguant dans l'arborescence de votre disque dur à la recherche des images voulues.
Un simple glisser-déposer place le fichier image dans son cadre. Picture Collage Maker adapte automatiquement la photo à la bonne dimension.
Vous pouvez ensuite personnaliser la composition en travaillant avec les poignées et les options de recadrage, rajouter du texte et des effets sur les photos. Cette version Pro vous offre plus de choix dans les templates (modèles) et les possibilités de compositions.
Picture Collage Maker propose l'export en JPEG ainsi que l'impression. Vous pouvez bien entendu expédier le tout à vos amis directement via l'option d'envoi par email incluse dans le logiciel. Vous pouvez aussi définir votre création comme fond d'écran en un clic.
Voici un logiciel complet et agréable à prendre en main pour qui veut réaliser des créations photographiques facilement. Dommage qu'il ne soit pas traduit en français.
Formats supportés par Picture Collage Maker:
BMP, JPG, PNG, GIF, TIF, TGA
Limitations:
15 jours d'essai
OS compatible avec Picture Collage Maker:
OS: Win98/98SE/Me/2000/XP/2003/Vista
Telecharger
Picture Collage Maker est un logiciel de création permettant de réaliser des compositions photo sans avoir besoin d'heures de formation sur des logiciels compliqués comme Photoshop ou Photofiltre.
Picture Collage Maker est très simple à prendre en main. Vous commencez par définir un modèle de document à produire parmi la longue liste de gabarits proposés.
Vous avez le choix entre des modèles de calendriers, des assemblages simples, des mélanges entre photos et cliparts, etc.
L'étape suivante consiste à placer vos photos sur le modèle choisi en naviguant dans l'arborescence de votre disque dur à la recherche des images voulues.
Un simple glisser-déposer place le fichier image dans son cadre. Picture Collage Maker adapte automatiquement la photo à la bonne dimension.
Vous pouvez ensuite personnaliser la composition en travaillant avec les poignées et les options de recadrage, rajouter du texte et des effets sur les photos. Cette version Pro vous offre plus de choix dans les templates (modèles) et les possibilités de compositions.
Picture Collage Maker propose l'export en JPEG ainsi que l'impression. Vous pouvez bien entendu expédier le tout à vos amis directement via l'option d'envoi par email incluse dans le logiciel. Vous pouvez aussi définir votre création comme fond d'écran en un clic.
Voici un logiciel complet et agréable à prendre en main pour qui veut réaliser des créations photographiques facilement. Dommage qu'il ne soit pas traduit en français.
Formats supportés par Picture Collage Maker:
BMP, JPG, PNG, GIF, TIF, TGA
Limitations:
15 jours d'essai
OS compatible avec Picture Collage Maker:
OS: Win98/98SE/Me/2000/XP/2003/Vista
Telecharger
HWMonitor 1.14
HWMonitor 1.14
HWMonitor est un utilitaire gratuit qui vous informe en temps réel sur les températures et les tensions des différents composants de votre ordinateur.
Conçu par la même équipe que CPU-Z, HWMonitor vous permet de vérifier que votre machine fonctionne dans des conditions optimales.
L'interface, très simple, liste les différents composants dans une vue en arborescence qu'il suffit de déplier pour accéder aux informations.
Pour chaque donnée recensée par HWMonitor, vous disposez de la valeur actuelle, maximale et minimale.
HWMonitor est capable d'interpréter les données de températures des sondes thermiques des carte mères mais aussi des capteurs intégrés directement à l'intérieur des processeurs récents ou des disques durs via S.M.A.R.T.
Vous pouvez aussi contrôler la vitesse de rotation des ventilateurs ce qui en fait un compagnon de choix pour SpeedFan.
HWMonitor permet de sauvegarder ses rapports au format texte. Une version Pro, payante, offre quant à elle la surveillance des composants via le réseau et l'export des données sous forme de graphiques.
Minimaliste mais pratique, HWMonitor offre une manière simple de garder un oeil attentif sur les composants de son ordinateur.
OS compatible avec HWMonitor:
OS: WinXP/Vista
Telecharger
HWMonitor est un utilitaire gratuit qui vous informe en temps réel sur les températures et les tensions des différents composants de votre ordinateur.
Conçu par la même équipe que CPU-Z, HWMonitor vous permet de vérifier que votre machine fonctionne dans des conditions optimales.
L'interface, très simple, liste les différents composants dans une vue en arborescence qu'il suffit de déplier pour accéder aux informations.
Pour chaque donnée recensée par HWMonitor, vous disposez de la valeur actuelle, maximale et minimale.
HWMonitor est capable d'interpréter les données de températures des sondes thermiques des carte mères mais aussi des capteurs intégrés directement à l'intérieur des processeurs récents ou des disques durs via S.M.A.R.T.
Vous pouvez aussi contrôler la vitesse de rotation des ventilateurs ce qui en fait un compagnon de choix pour SpeedFan.
HWMonitor permet de sauvegarder ses rapports au format texte. Une version Pro, payante, offre quant à elle la surveillance des composants via le réseau et l'export des données sous forme de graphiques.
Minimaliste mais pratique, HWMonitor offre une manière simple de garder un oeil attentif sur les composants de son ordinateur.
OS compatible avec HWMonitor:
OS: WinXP/Vista
Telecharger
Registry First Aid 7.0.0
Registry First Aid 7.0.0
Registry First Aid est un logiciel complet de maintenance du registre de Windows.
L'installation, la désinstallation de logiciels et plus généralement l'utilisation de votre ordinateur dans la durée provoque parfois de baisses de performances notables du système.
Si vous rencontrez des ralentissements fréquents ou des plantages à répétition, ils sont peut-être dûs à des entrées incorrectes dans la base de registre.
Pour remédier à ce type de problèmes, Registry First Aid fournit tous les outils nécessaires pour analyser, réparer et optimiser le registre en toute sécurité, tout en restant accessible aux utilisateurs peu expérimentés.
Lors de l'analyse, Registry First Aid parcourt la base de registre à la recherche d'entrées invalides pour les chemins d'applications, les associations de fichiers, les polices, les fichiers d'aide, les DLL ou les références ActiveX/COM. Vous pouvez choisir avant le scan quels éléments vous souhaitez inclure dans la vérification.
Les clés de registre détectées comme invalides sont listées par catégorie ou par niveau de sécurité. Très pratique, ce classement vous indique clairement quelles entrées peuvent être supprimées sans soucis et celles qui réclament plus de prudence.
Avant toute modification, Registry First Aid réalise une sauvegarde complète de la base de registre pour pouvoir revenir en arrière en cas de problème.
Vous pouvez effectuer ces sauvegardes manuellement et utiliser la fonction de création d'instantanés pour comparer simplement deux états sauvegardés du registre.
Registry First permet aussi de défragmenter le registre pour une utilisation plus fluide de votre système.
La version Platinum, plus avancée, offre des fonctions supplémentaires pour gérer les programmes au démarrage de Windows, les entrées du menu de désinstallation des programmes, le dialogue Ouvrir avec et des options avancées pour Internet Explorer.
Performant et simple à prendre en main, Registry First Aid s'addresse aussi bien aux débutants qu'aux utilisateurs expérimentés.
Limitations:
30 jours d'essai
La version d'essai limite le nombre de corrections
OS compatible avec Registry First Aid:
OS: Win98/98SE/Me/2000/NT/XP/2003/Vista
Telecharger
Registry First Aid est un logiciel complet de maintenance du registre de Windows.
L'installation, la désinstallation de logiciels et plus généralement l'utilisation de votre ordinateur dans la durée provoque parfois de baisses de performances notables du système.
Si vous rencontrez des ralentissements fréquents ou des plantages à répétition, ils sont peut-être dûs à des entrées incorrectes dans la base de registre.
Pour remédier à ce type de problèmes, Registry First Aid fournit tous les outils nécessaires pour analyser, réparer et optimiser le registre en toute sécurité, tout en restant accessible aux utilisateurs peu expérimentés.
Lors de l'analyse, Registry First Aid parcourt la base de registre à la recherche d'entrées invalides pour les chemins d'applications, les associations de fichiers, les polices, les fichiers d'aide, les DLL ou les références ActiveX/COM. Vous pouvez choisir avant le scan quels éléments vous souhaitez inclure dans la vérification.
Les clés de registre détectées comme invalides sont listées par catégorie ou par niveau de sécurité. Très pratique, ce classement vous indique clairement quelles entrées peuvent être supprimées sans soucis et celles qui réclament plus de prudence.
Avant toute modification, Registry First Aid réalise une sauvegarde complète de la base de registre pour pouvoir revenir en arrière en cas de problème.
Vous pouvez effectuer ces sauvegardes manuellement et utiliser la fonction de création d'instantanés pour comparer simplement deux états sauvegardés du registre.
Registry First permet aussi de défragmenter le registre pour une utilisation plus fluide de votre système.
La version Platinum, plus avancée, offre des fonctions supplémentaires pour gérer les programmes au démarrage de Windows, les entrées du menu de désinstallation des programmes, le dialogue Ouvrir avec et des options avancées pour Internet Explorer.
Performant et simple à prendre en main, Registry First Aid s'addresse aussi bien aux débutants qu'aux utilisateurs expérimentés.
Limitations:
30 jours d'essai
La version d'essai limite le nombre de corrections
OS compatible avec Registry First Aid:
OS: Win98/98SE/Me/2000/NT/XP/2003/Vista
Telecharger
SISXplorer 1.1
SISXplorer 1.1
SISXplorer est un utilitaire gratuit conçu pour visualiser et extraire les fichiers des archives d'installeur .SIS ou .SISX. Ces fichiers sont associés aux applications tournant sous système d'exploitation Symbian S60 3rd, celui des mobiles Nokia et de certains modèles de Motorola et Sony Ericsson.
Il suffit d'ouvrir l'archive voulue (bouton Open SISX File... ou bien par simple glisser-déposer) pour voir son arborescence interne. Notez que vous pouvez en ouvrir plusieurs à la fois.
En cliquant sur la ligne qui vous intéresse, vous pouvez accéder à différents niveaux d'informations, matérialisés par des onglets dans la partie droite de l'interface: détails de l'installateur (nom, version, propriétés, script d'installation, etc.), fichiers TXT associés, etc.
Surtout, il est possible d'inspecter en profondeur le contenu de chaque fichier grâce à la visionneuse HEX intégrée.
Un outil très pratique pour fouiller dans les entrailles de ses fichiers SIS ou SISX, même si beaucoup d'entre nous l'utiliseront surtout pour extraire des images et des icônes.
A propos de la licence:
Le programme est gratuit mais son auteur n'a rien contre les dons.
OS compatible avec SISXplorer:
OS: Windows XP
Configuration minimale:
.NET Framework 2.0 ou supérieur
Telecharger
SISXplorer est un utilitaire gratuit conçu pour visualiser et extraire les fichiers des archives d'installeur .SIS ou .SISX. Ces fichiers sont associés aux applications tournant sous système d'exploitation Symbian S60 3rd, celui des mobiles Nokia et de certains modèles de Motorola et Sony Ericsson.
Il suffit d'ouvrir l'archive voulue (bouton Open SISX File... ou bien par simple glisser-déposer) pour voir son arborescence interne. Notez que vous pouvez en ouvrir plusieurs à la fois.
En cliquant sur la ligne qui vous intéresse, vous pouvez accéder à différents niveaux d'informations, matérialisés par des onglets dans la partie droite de l'interface: détails de l'installateur (nom, version, propriétés, script d'installation, etc.), fichiers TXT associés, etc.
Surtout, il est possible d'inspecter en profondeur le contenu de chaque fichier grâce à la visionneuse HEX intégrée.
Un outil très pratique pour fouiller dans les entrailles de ses fichiers SIS ou SISX, même si beaucoup d'entre nous l'utiliseront surtout pour extraire des images et des icônes.
A propos de la licence:
Le programme est gratuit mais son auteur n'a rien contre les dons.
OS compatible avec SISXplorer:
OS: Windows XP
Configuration minimale:
.NET Framework 2.0 ou supérieur
Telecharger
BOINC 6.6.28
BOINC 6.6.28
BOINC partage les ressources de votre ordinateur pendant ses périodes d'inactivité pour aider la recherche scientifique.
Développé en Open Source par la prestigieuse Université de Berkeley aux Etas-Unis, ce projet rassemble aujourd'hui près d'1.5 millions d'utilisateurs. Il vous donne la possibilité de participer activement à des projets comme la recherche de vie extraterrestre, l'étude du réchauffement climatique, ou encore la résolution de problèmes fondamentaux de physique et de mathématique.
L'installation ne pose aucun problème particulier. Une fois terminée, un assistant vous aide à choisir le ou les projets auxquels vous voulez participer. Chaque projet est accompagné d'un lien vers son site internet pour une description complète, souvent en anglais. Un clic suffit à les ajouter.
Vient ensuite le paramétrage des circonstances lors desquelles votre ordinateur se livrera aux joies du calcul collaboratif: période d'inactivité, créneaux horaires, etc. Vous pouvez aussi définir quelle proportion de vos ressources assigner à BOINC pour le processeur, la mémoire vive et le disque dur. Enfin, le panneau de contrôle avancé fournit des statistiques complètes sur les transferts de données et les calculs effectués.
Avec ce projet ambitieux, Internet et l'informatique personnelle s'unissent pour le meilleur. Une bonne manière d'affirmer votre cyber-citoyenneté.
Dernières modifications de BOINC:
La liste des dernières modifications est disponible ici.
OS compatible avec BOINC:
OS: Win98/98SE/Me/2000/NT/XP
Configuration minimale:
Connexion Internet
Telecharger
BOINC partage les ressources de votre ordinateur pendant ses périodes d'inactivité pour aider la recherche scientifique.
Développé en Open Source par la prestigieuse Université de Berkeley aux Etas-Unis, ce projet rassemble aujourd'hui près d'1.5 millions d'utilisateurs. Il vous donne la possibilité de participer activement à des projets comme la recherche de vie extraterrestre, l'étude du réchauffement climatique, ou encore la résolution de problèmes fondamentaux de physique et de mathématique.
L'installation ne pose aucun problème particulier. Une fois terminée, un assistant vous aide à choisir le ou les projets auxquels vous voulez participer. Chaque projet est accompagné d'un lien vers son site internet pour une description complète, souvent en anglais. Un clic suffit à les ajouter.
Vient ensuite le paramétrage des circonstances lors desquelles votre ordinateur se livrera aux joies du calcul collaboratif: période d'inactivité, créneaux horaires, etc. Vous pouvez aussi définir quelle proportion de vos ressources assigner à BOINC pour le processeur, la mémoire vive et le disque dur. Enfin, le panneau de contrôle avancé fournit des statistiques complètes sur les transferts de données et les calculs effectués.
Avec ce projet ambitieux, Internet et l'informatique personnelle s'unissent pour le meilleur. Une bonne manière d'affirmer votre cyber-citoyenneté.
Dernières modifications de BOINC:
La liste des dernières modifications est disponible ici.
OS compatible avec BOINC:
OS: Win98/98SE/Me/2000/NT/XP
Configuration minimale:
Connexion Internet
Telecharger
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