All about the World Wide Web

World Wide Web is a collection of globally distributed text and multimedia documents and files and other network services linked in such a way as to create an immense electronic library from which information can be retrieved quickly by intuitive searches. The Web represents the application of hypertext technology and a graphical interface to the Internet to retrieve information that is contained in specially formatted documents that may reside in the same computer or be distributed across many computers around the world. It consists of three main elements. The Hypertext Markup Language (HTML) comprises the programming codes, or tags, that define fonts, layouts, embedded graphics, and links (hyper links) to other documents accessible via the Web. The Hypertext Transfer Protocol (HTTP) defines a set of standards for transmitting Web pages across the Internet. The Universal Resource Locator (URL) is a standardized naming convention for identifying a Web document or file, in a sense the address of a link. The result is called the Web because it is made up of many sites, all linked together, with users traveling from one site to the next by clicking a computer's pointing device on a hyper link.

Web sites, also called Web pages, are really Internet sites that all use the same techniques and HTML tags to create multimedia documents with hypertext links. Each Web page can contain many screens or printed pages of text, graphics, audio, and even video, and the starting point for any Web site is called its home page. Although each page is an Internet site, it must be accessed via a special program called a Web browser, which can translate the HTML into the graphical images, text, and hypertext links intended by the creator of the page.

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