Question #50007. Asked by
kaushik_twin.
Last updated May 28 2021.
President Dwight D. Eisenhower saw the need for the Advanced Research Projects Agency (ARPA) after the Soviet Union's 1957 launch of Sputnik ... The organization united some of America's most brilliant people, who developed the United States' first successful satellite in 18 months. Several years later ARPA began to focus on computer networking and communications technology.
In 1962, Dr. J.C.R. Licklider was chosen to head ARPA's research in improving the military's use of computer technology. Licklider was a visionary who sought to make the government's use of computers more interactive. To quickly expand technology, Licklider saw the need to move ARPA's contracts from the private sector to universities and laid the foundations for what would become the ARPANET ...
Around Labor Day in 1969, BBN delivered an Interface Message Processor (IMP) to UCLA that was based on a Honeywell DDP 516, and when they turned it on, it just started running. It was hooked by 50 Kbps circuits to two other sites (SRI and UCSB) in the four-node network: UCLA, Stanford Research Institute (SRI), UC Santa Barbara (UCSB), and the University of Utah in Salt Lake City.
"We set up a telephone connection between us and the guys at SRI...," Kleinrock ... said in an interview: "We typed the L and we asked on the phone,
"Do you see the L?"
"Yes, we see the L," came the response.
"We typed the O, and we asked, "Do you see the O."
"Yes, we see the O."
"Then we typed the G, and the system crashed"...
The point that I do want to dust off and raise again is that ARPA wouldn't have happened, if what used to be the Soviet Union hadn't shaken complacent U.S. awake with a tin can in the sky, Sputnik.
The Internet was the result of some visionary thinking by people in the early 1960s who saw great potential value in allowing computers to share information on research and development in scientific and military fields. J.C.R. Licklider of MIT first proposed a global network of computers in 1962, and 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. These visionaries and many more left unnamed here are the real founders of the Internet.
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). 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. 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.
The Internet was designed to provide a communications network that would work even if some of the major sites were down. If the most direct route was not available, routers would direct traffic around the network via alternate routes.
The internet is based on many technologies developed for ARPANET in the 1960s and 1970s. The first ARPANET link was established between a computer at UCLA and another one at the Stanford Research Institute on October 29, 1969. By the end of 1971, there were fifteen computers on the network.
The internet was invented in the 1990-99 decade. Before the invention of the internet telegraph, telephone radio and postal mail were modes of communication.
The first applications of nodes connected as a (ring) network over long distance by phone lines were realized between the 1st of September 1969 and the 1st of October 1969. Arpanet (Advanced Research Projects Agency) was realized by DARPA (Defense Advanced Research Projects Agency) and SRI (Stanford Research Institute). Although DARPA's work is classified in this case the concept of resource sharing made the Internet possible. Other sources report the first connection was between DARPA and UCLA (Universityof California, Los Angeles). The node at SRI (Stanford Research Institute) would have -logically- been connected as well. The SRI node provided management and logging capabilities which made it imperative.
Development of internet started in 1957 when Sputnik I (the first satellite) was launched by Soviet Union. Americans felt threat by this and thought that the Soviet Union could also do bomb attacks from the space. So they created Defense Advanced Research Project Agency (DARPA) in 1958. It worked for the safety from space based missile attack. Then they made another satellite which was the first satellite of U.S.
so we can play games yo.
|
|