![]() ![]() It is the primary tool billions of people worldwide use to interact with the Internet. The Web has become the world's dominant information systems platform. Website content is provided by a myriad of companies, organizations, government agencies, and individual users and comprises an enormous amount of educational, entertainment, commercial, and government information. A single web server may provide multiple websites, while some websites, especially the most popular ones, may be provided by multiple servers. Multiple web resources with a common theme and usually a common domain name make up a website. ![]() The information in the Web is transferred across the Internet using the Hypertext Transfer Protocol (HTTP). ![]() Web applications are web pages that function as application software. Web navigation, or web surfing, is the common practice of following such hyperlinks across multiple websites. ![]() The HTML language also supports hyperlinks (embedded URLs) which provide immediate access to other web resources. This markup language supports plain text, images, embedded video and audio contents, and scripts (short programs) that implement complex user interaction. The original and still very common document type is a web page formatted in Hypertext Markup Language (HTML). Servers and resources on the World Wide Web are identified and located through character strings called uniform resource locators (URLs). Documents and other media content are made available to the network through web servers and can be accessed by programs such as web browsers. It was conceived as a "universal linked information system". The Web was invented by English computer scientist Tim Berners-Lee while at CERN in 1989 and opened to the public in 1991. The historic World Wide Web logo, designed by Robert Cailliau ![]()
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