The Internet began with funding from the US National Science Foundation as a means to allow American universities to share the resources of five national supercomputing centers. It began in 1984 and by late 1994 was estimated to have over 40 million users on 11,000 networks in 70 countries, with an estimated one million new users joining each month. The service offers electronic mail, conferencing and chat services, as well as the ability to access remote computers and send and retrieve files. Global, on-line computer network connecting governments, companies, universities, and many other networks and users. The Internet was originally developed for the United States military, and then became used for government, academic, and commercial research and communications. The Internet includes a variety of electronic services such as electronic mail (e-mail), Telnet (remote login), FTP (File Transfer Protocol for downloading or uploading of files), Gopher (an early, text-only method for accessing Internet documents), and the World Wide Web. Each computer runs software to provide or serve information and/or to access and view information. The Internet is a network of networks, linking computers to computers by speaking the same language called TCP/IP protocol.

It is physically put together from many smaller networks and data travels by a common set of protocols. cyberspace.Īn enormous network consisting of literally millions of hosts from many organizations and countries around the world. Worldwide network of computer computer networks that use the TCP/IP network protocols to facilitate data transmission and exchange SYN. See also BITNET, FTP1 (definition 1), Gopher, IRC, NSFnet, telnet, Usenet, UUCP, World Wide Web. Currently the Internet offers a range of services to users, such as FTP, e-mail, the World Wide Web, Usenet news, Gopher, IRC, telnet, and others. Eventually other networks, including BITNET, Usenet, UUCP, and NSFnet, were connected to ARPANET. Department of Defense in 1969 to facilitate communications in the event of a nuclear attack. The genesis of the Internet was a decentralized network called ARPANET created by the U.S. One or more Internet nodes can go off line without endangering the Internet as a whole or causing communications on the Internet to stop, because no single computer or network controls it. At the heart of the Internet is a backbone of high-speed data communication lines between major nodes or host computers, consisting of thousands of commercial, government, educational, and other computer systems, that route data and messages.

The worldwide collection of networks and gateways that use the TCP/IP suite of protocols to communicate with one another.

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