Web (World Wide Web) is a global wide area network, also known as the World Wide Web. It is a global, dynamically interactive, cross-platform distributed graphical information system based on hypertext and HTTP. It is a network service built on the Internet. It provides a graphical, easy-to-access and intuitive interface for viewers to find and browse information on the Internet. The documents and hyperlinks organize the information nodes on the Internet into an interactive system. Associative network structure.

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In 1989, a group led by Tim Berners-Lee at CERN (European Institute for Particle Physics) submitted a new protocol for the Internet and a protocol using this protocol. Documentation system, the team named this new system World Wide Web. Its purpose is to enable scientists around the world to use the Internet to exchange their work documents.

This new system is designed to allow any user on the Internet to search for and retrieve documents from the databases of many document serving computers. By the end of 1990, the basic framework of this new system had been developed and implemented on a computer at CERN. In 1991, the system was transplanted to other computer platforms and officially released.

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