What is World Wide Web

World Wide Web (web) a computer-based information service developed at cern in the early 1990s. It is a hypermedia system (see HYPERTEXT) distributed over a large number of computer sites that allows users to view and retrieve information from documents containing links. It is accessed by a computer connected to the internet that is running a suitable program. Web documents may consist of text or other features, such as graphics, still or moving images, or audio clips. Within a document there will be material to be displayed and usually one or more links, which in a text document appear as highlighted words or phrases, or as icons. The links point to other documents located elsewhere on the web by means of a url (universal resource locator), which contains information specifying, for example, the network address of the device holding the document and the local index entry for that document. Activating a link will result in the display of the requested document.