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ARPANET

>>>>>>>>>>>>>>>>>>>>>>>>>>ARPANET refers to the network that is now considered the basis for the modern Internet.

History

– Based on a concept first published in 1967, ARPANET was developed under the direction of the US Advanced Research Projects Agency (ARPA).

– In 1969, the idea of a computer network became a reality by connecting four university computers. The original purpose was to communicate with and share computer resources between mainly scientific users at the connected institutions.

– The network sent information in small units, called packets, which could be forwarded in various ways and reconstructed at the destination.

– The development of the TCP / IP protocols in the 1970s enabled an orderly expansion of the network, which had by then become a network of networks.

– In the 1980s, the network construct was handed over to a separate new military network, the Defense Data Network, and NSFNet, a network of scientific and academic computers funded by the National Science Foundation.

Because the name of ARPA was changed to Defense Advanced Research Projects Agency (DARPA) in 1971, ARPANET is sometimes referred to as DARPANET. (DARPA was changed back to ARPA in 1993 and again to DARPA in 1996).


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