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The Internet has had a relatively brief, but explosive history.
It grew out of an experiment begun in the 1960s by the U.S. Department
of Defense. The DoD wanted to create a computer network that would continue
to function in the event of a disaster, such as a nuclear war. If part of
the network was damaged or destroyed, the rest of the system still had
to work. That network was ARPANET, (Advanced Research Projects Agency Network) which linked U.S. scientific and
academic researchers. It was the forerunner of today's Internet.
In 1985, the National Science Foundation (NSF), an American research organization, created NSFNET, a series of communication networks. Based on ARPANET protocols, the NSFNET created a national backbone service, provided free to any American research and educational institution. At the same time, regional networks were created to link individual institutions with the national backbone service. NSFNET grew rapidly as people discovered its potential and as new software applications were created to make access easier. Corporations such as Sprint and MCI began to build their own networks that they then linked to NSFNET. When commercial firms and other regional network providers took over the operation of the major Internet arteries, NSF withdrew from the backbone business. NSF also coordinated a service called InterNIC that registered all addresses on the Internet so that data could be routed to the right system. This service has now been taken over by Network Solutions, Inc. and other Internet registration services in cooperation with NSF. For a detailed look at the Internet's major milestones, see The Roads and Crossroads of Internet History. Visit the the Computer History Museum's online exhibit of Internet history from 1962 - 1992.
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