How the Web Works

How the Web Works Many people think of the Inteet and the Web are the same. Indeed, the Inteet is simply a global network of computers - the web runs on top of the Inteet, and makes it useful for us. So how does the work of the web! The invention of the Web The Web was invented by a man named Tim Beers-Lee in 1989 - that 20 years after the beginning of the Inteet. People have been trying to develop effective methods for sending information on the Inteet for a while 'at that point (e-mail was invented in 1971, for example), but there had been no systems that have the potential to really take the network. The web has changed everything. Beers-Lee was a great idea to apply the idea of connections to the Inteet: The Web is a mass of pages that you can navigate by clicking the link. He came with a format of these pages (HTML), and wrote the first web browser to view, and the first web server to send people to other browsers. Links may not seem like much, but at the time was revolutionary. Imagine what the web would be like if I had to take a long typing addresses each time you wanted to move from page to page, or use the menu numbered more work differently from one site to another. Without the web, with access to the Inteet would be quite useless. Server and browser each time you use a web browser (like Inteet Explorer or Mozilla Firefox), you are using the web. How? Well, this is the same: 1. You open the browser and go to the home page. > From there you can click on links to other sites or to other parts of the site. If your home is a search engine, so you can type in a search and click on the link in the search results. If you know the address of a site that you want to go, you can write, and then click on the link there to go forward. 2nd Each time you click on a link, the browser looks at two things: the name of the web server that connects, and the names of the links to pages on the server. For example, the address''tells browser to get the call mypage.html page from the server via HTTP (Hypertext Transfer Protocol). This server is a real computer connected to the Inteet, which is the page that you want stored on your hard drive. 3rd To find out where the server, the web browser uses the DNS (Domain Name System), which converts the text in the direction of a number. This IP address (Inteet Protocol) address consists of four numbers between 0 and 255 - it seems that a phone number. The Inteet is set to make it easy to find a server in the world once you know your IP address, and can easily find the fastest route from your ISP (Inteet Service Provider) for the server, and to establish a communication. Throughout this process, since the DNS lookup for the connection, very often less than one second. 4th Your browser sends a HTTP request to the web server and web server responds by sending back the HTML (Hypertext Markup Language) that the code of the page. Your Web browser to convert this code into a page you can see. From there you can click on the link to start the process over again. Of course, all this is very simple: the mode browsers and servers to send about much more than HTML. You can use the Web to download anything now, from images of programs, but all work basically the same. If something goes wrong somewhere in this process, and then get an error "The page can not be displayed, for example, usually means that the server name is incorrect, or you did not want to page. You can also see errors saying the server is too busy with other people, to respond to requests, or that the page has been moved. In any case, it is better to follow the instructions on the error page, which usually means that the control of management and try again.