World Wide Web
- The World Wide Web also called WWW or Web or W3 delivers what you see right now ....
- The World Wide Web (or simply the "Web") is a system of interlinked, hypertext documents that runs over the Internet. With a Web browser, a user views Web pages that may contain text, images, and other multimedia and navigates between them using hyperlinks (Wikipedia, retrieved 23:25, 28 March 2007 (MEST)).
The World Wide Web is the combination of five basic ideas (slighly altered definition from Wikipedia)
- Hypertext: a format of information which allows, in a computer environment, one to move from one part of a document to another or from one document to another through hyperlinks;
- Resource Identifiers: unique identifiers used to locate a particular resource (computer file, document or other resource) on the network
- The HTTP client-server model of computing: a system in which client software (e.g. a webbrowser) makes requests to a server like "get me this page" or "get me the program that can deal with this information". Server software therefore provides the client with resources or services, such as data or files.
- Markup language (initially HTML, but today also XML formats like XHTML and SVG). Markup are characters or codes embedded in text which indicate structure , semantic meaning, or advice on presentation CSS.
- A client that deal with other information too, e.g. PDF files. Some clients can access other Inter protocols and formats. E.g. it can act as mail reader or RSS aggregator. So both the client and the server can aggregate information.
The Web was created around 1990 by the British Tim Berners-Lee and the Belgian Robert Cailliau working at CERN in Geneva, Switzerland.
A Quotation of Tim Berner-Lee's Answers for Young People:
- Did you invent the Internet?
- What were the first WWW browsers?
- Berners-Lee wrote in 1990 the first GUI browser, and called it "WorldWideWeb". It ran on the NeXT computer.
- Viola, Pei Wei a student at U.C. Berkeley in 1992 or 1993 ?