1)-The Internet, then known as ARPANET, was brought online in 1969 under a contract let by the renamed Advanced Research Projects Agency (ARPA)
2)-ARPANET used packet switching to allow multiple computers to communicate on a single network..
3)-Raymond Samuel Tomlinson (April 23, 1941 – March 5, 2016) was a pioneering[1][2][3][4] American computer programmer who implemented the first email program on the ARPANET system, the precursor to the Internet, in 1971; he is internationally known and credited as the inventor of email.
4)-After leaving CERN in late 1980, he went to work at John Poole's Image Computer Systems, Ltd, in Bournemouth, Dorset. He ran the company's technical side for three years. The project he worked on was a "real-time remote procedure call" which gave him experience in computer networking.
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