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Friday, December 21, 2012

History of the Internet | part1



In this subject you can read the most important note about History of internet

The Internet was the result of some visionary thinking by people in the early 1960’s who saw great potential value in allowing computers to share information on research and development in scientific and military fields.


Licklider of MIT, first proposed a global network of computers in 1962, where everyone in the globe is interconnected and can access programs and data at any site from anywhere.  He moved over to the Defense Advanced Research Projects Agency (DARPA) in late 1962 to head the work to develop it.

Leonard Kleinrock of MIT and later UCLA developed the theory of packet switching, which was to form the basis of Internet connections. 

Lawrence Roberts of MIT connected a Massachusetts computer with a California computer in 1965 over dial-up telephone lines. It showed the feasibility of wide area networking, but also showed that the telephone line's circuit switching was inadequate. 

Kleinrock's packet switching theory was confirmed. Roberts moved over to DARPA in 1966 and developed his plan for ARPANET. 

The Internet, then known as ARPANET, was brought online in 1969 under a contract let by the renamed Advanced Research Projects Agency (ARPA) which initially connected four major computers at universities in the southwestern US (UCLA, Stanford Research Institute, UCSB, and the University of Utah).
After installation in September, handwritten logs from UCLA show the first host-to-host connection, from UCLA to SRI, is made on October 29, 1969 

The contract was carried out by BBN of Cambridge, MA under Bob Kahn and went online in December 1969. 
By June 1970, MIT, Harvard, BBN, and Systems Development Corp (SDC) in Santa Monica, Cal. were added (Nodes are added to ARPANET at the rate of one per month).
By January 1971, Stanford, MIT's Lincoln Labs, Carnegie-Mellon, and Case-Western Reserve U were added. 

In months to come, NASA/Ames, Mitre, Burroughs, RAND, and the U of Illinois plugged in. After that, there were far too many to keep listing here. 


Continue Read History of Internet part 2

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