Aaron J Hudson CIS 100-3702 Dr. Avis O. Anderson November 3rd, 2005 1962 was a year of many firsts. The Beetles released their very first album, Leonard da Vinci’s Mona Lisa was exhibited for the first time in the United States, and the year gave birth to one of Hollywood’s most famed actors, Tom Cruise. Another birth that occurred in this year, that was not widely recognized, was the birth of the internet. Where did the internet come from? What are its origins? And why was the need for such technology a must in these trying times of unrest? We are going to step back in time and rediscover the answers to these questions about this vast technology that has become such a necessity in everyday life. On October 4th, 1957, the former Soviet Union launched Sputnik 1, the first artificial satellite to orbit the earth and set the precedence for science and technology. In reply, the United States forms the Advance Research Projects Agency (ARPA) within the Department of Defense (DoD) to establish the US lead in science and technology with regards to the military. ARPA was later named the Defense Advanced Research Projects Agency (DARPA).1 The first recorded interaction between computers through networking was memos by J.C.R. Licklider of MIT in August of 1962. Contained in these memos were his visions of a “Galactic Network” or “globally interconnected set of computers through which everyone could quickly access data and programs from any site.” In October of 1962, Licklider became the first head of the computer research program at DARPA. In the same year, unknown to Licklider, Paul Baran of the RAND Corporation (another government agency) was commissioned by the United States government to research ways to maintain control of its bombers and missiles should an attack occur. The outcome was to be a network that could survive a nuclear strike, should any US cities be attacked, so that the military could still have control of its nuclear arms for a counter strike. After accomplishing several ways to complete the task, his final proposal was a packet network. "Packet switching is the breaking down of data into datagrams or packets that are labeled to indicate the origin and the destination of the information and the forwarding of these packets from one computer to another computer until the information arrives at its final destination computer. This was crucial to the realization of a computer network. If packets are lost at any given point, the message can be resent by the originator." Following the belief and vision of Licklider, Lawrence G. Roberts, an MIT researcher went to DARPA in late 1966 to develop this concept and put together his plan for the ARPANET. Presenting his paper at this conference, Roberts learned of the work being done by Paul Baran and his paper on packet switching networks for secure voice for the military. Both the teams at MIT and RAND Corporation were working in a parallel pattern with the same goal in mind…..communicating and transferring data between computers. In August of 1968, after the specifications and overall structure of the ARPANET were refined, DARPA released a Request For Quote or a (RFQ) for the development of one of the key components, the packet switches known as Interface Message Processors (IMP’s). Frank Heart and his group at Bolt, Beranek, and Newman (BBN) won the RFQ. Since Leonard Kleinrock at MIT published the first paper on packet switching theory, his Network Management Center at the University of California at Los Angeles was selected to be the first node on the ARPANET. In 1969, BBN installed the first IMP at UCLA and the first host computer was connected. Stanford Research Institute (SRI) provided a second node. Led by Elizabeth Feinler, SRI supported the Network Information Center and included functions like maintaining tables of host to name address mapping as well as a directory of Request For Comments or (RFC’s). One month later, SRI was the second host computer connected to the ARPANET and the first host to host message was sent from Kleinrock’s lab at UCLA to Feinler at SRI. Two more nodes at the University of California at Santa Barbara and the University of Utah were added to the ARPANET. Glen Culler and Burton Fried at UCSB investigated the problem with the refresh rate over the net and Robert Taylor and Ivan Sutherland at the University of Utah dealt with the 3-D representation over the net. After everything was said and done, four host computers were connected together in the initial ARPANET and the internet as we know it today was off and running. The events that followed the birth of the internet only enhanced it to what we know today and will continue well beyond to what we can only imagine tomorrow. Initially invented and maintained by the government and for the military, the net has grown into the most powerful tool of communication the world has known. With the amazing advancement of internet technology to date, one can only imagine what the future holds. References 1) Kristula, Dave. The History of the Internet March 1997. http://www.davesite.com/webstation/net-history.shtml 2) Barry M. Leiner, Vinton G. Cerf, David D. Clark, Robert E. Kahn, Leonard Kleinrock Daniel C. Lynch, Jon Postel, Larry G. Roberts, Stephen Wolff A Brief History of the Internet December 10th, 2003. http://www.isoc.org/internet/history/brief.shtml 3) Townsend, Mark. Origins of the Internet May 28, 2004. http://www.ci.st-joseph.mo.us/tcs/internet.cfm ________________________________________________________________________ The Advanced Research Projects Agency (ARPA) changed its name to the Defense Advanced Research Projects Agency (DARPA) in 1971. Then back to ARPA in 1993. Then back again to DARPA in 1996. Though you may read both in this text, they are synonymous.