The user has the choice of reading a document from beginning to end or jumping quickly from hyperlink to hyperlink. The Internet also includes electronic mail, or e-mail , and Usenet , a collection of several thousand discussion groups. Neither is really part of the Web. The World Wide Web is a network of thousands of computers, all of which may be categorized as clients and servers. Through the use of special software, they form a kind of network called, not surprisingly, a client-server network.
Servers store information and process requests from clients.
They then send the requested information to the clients. This information includes all kinds of data, including images, sounds, and text. Servers also send instructions to the client on how to display all this information. Clients make request for information and then handle the chore of displaying that information. When you are using a Web browser to navigate the Web, your browsing software is acting as a client.