Internet Business Group – Internet History
One of the first people to write about the possibility of the internet was J.C.R. Licklider of Massachusetts Institute of Technology and Bolt, Beranek and Newman. He wrote a series of memos during August, 1962, which described what we know as the internet and which he called the Galactic Network. In October, 1962, he became the director of Defense Advanced Research Projects Agency, part of the United States Department of Defense. He saw the need for a system of networks that would be connected to each other and could easily be used by common people. He formalized these thoughts and presented them in a paper called The Computer as a Communication Device which he first presented in April, 1968.
Soon Leonard Kleinrock had developed packet switching theory and had written a book on the subject. At the same time, researchers at RAND and NPL were working on the same ideas. The theory was that a nuclear attack could destroy the telephone service, but computers connected to each other would be safe, because an injured computer could simply be bypassed.
The first message was sent by a University of California at Los Angles, California. A student programmer named Charley Kline sent a message to a host computer located at Stanford Research Institute. The sending computer was a SDS Sigma 7 while the receiving computer was an SDS 940 computer. The message consisted of the letters lo, before the computer crashed. An hour later, the second message was sent, which consisted of the word login.
The first network consisted of computers located at the University of California, Stanford Research Institute, the University of California and the University of Utah. On December 5, 1969, all computers on the network were finally connected.
The first email was sent by Ray Tomlinson to himself in 1971, on a separate, although nearby computer. Tomlinson was responsible for the @ in email addresses. Two years later, ¾ of all internet traffic was emails, mostly between researchers. Five years after the first email was sent, Robert Metcalfe and David Boggs developed the Ethernet. Robert Metcalfe used the word Ethernet first in a memo dated May 22, 1973. It did not function, however until November 11 of that year.
The last step in creating the internet did not occur for another eighteen years as the original operating system, ARPANET, was replaced with NSFNET, which was twenty five times faster. Tim Berners-Lee developed html code in 1990, and the internet was born in 1991.