oct 1969 | History | UCLA Alumni Professor Leonard Kleinrock guided the UCLA team that sent the first “host-to-host” message. The record above is a sketch of how the ARPA Network functioned along with an excerpt from the IMP Log that the UCLA kept. Kleinrock was supervising student programmer Charley Kline on Oct. 29, 1969, when they set up a message transmission to go from the UCLA SDS Sigma 7 Host computer to the Stanford Research Institute's SDS 940 Host computer. “Lo.” Inauspicious, perhaps, but then an infant's first word generally is. That was the day Kleinrock and a student assistant, Charley Kline ’70, M.S. ’71, Ph.D. ’80 sent the first “host-to-host” message over ARPANET (Advanced Research Projects Agency Network), the precursor to today's Internet. Programmers at UCLA — officially the first node on the network — were attempting to logon to the Stanford Research Institute (SRI) Host. "As of now,” Kleinrock said at the time, “computer networks are still in their infancy. See other snapshots in time »
Today in Media History: The Internet began with a crash on October 29, 1969 The beginning of the Internet is the story of two large computers, miles apart, sending the message: "LO." The world has never been the same. In the late 1960s an experimental network of four computers called ARPANET (Advanced Research Projects Agency Network) was commissioned by the U.S. government. The computers were located at UCLA, SRI International (then known as Stanford Research Institute), UC Santa Barbara, and the University of Utah. ARPANET evolved into the network of computer networks we know as the Internet. On October 29, 1969, the first message was sent between two ARPANET computers. UCLA's Leonard Kleinrock, who was part of the team that first connected the ARPANET computers, is interviewed in this KTLA-TV story. "The breakthrough accomplished that night in 1969 was a decidedly down-to-earth one. On January 1, 1983, Transmission Control Protocol (TCP) and Internet Protocol (IP) were accepted as the standard protocols for the ARPANET and other computer networks.
A DARPA Perspective on the Development of the Internet | Defense Media Network The history of the internet is inextricably connected with DARPA and the development of new networking and information-sharing technologies. From its humble beginnings as a collection of connected research facilities to today’s global (and extra-global) network of billions of devices, a core theme of the internet’s evolution has been and continues to be the cutting-edge research conducted under DARPA’s auspices. When internet pioneer J.C.R. Licklider described, with intentional grandiloquence, his vision of an “Intergalactic Computer Network” in 1963, he still might not have imagined just how extensively the network whose seeds he planted would grow in the terrestrial realm. In its scope and ubiquity, the internet has transformed life on a civilization-wide scale. Smartphones and other mobile devices connect bankers in Manhattan and rice farmers in India to a vast sea of information. The Interface Message Processor (MIP) was the first packet router for the ARPANET.