Bob Kahn

Robert " Bob" Elliot Kahn ( born December 23, 1938 in New York City ) is an American computer scientist and along with Vint Cerf one of the developers of the Transmission Control Protocol (TCP ) and the Internet Protocol ( IP) address for the modern Internet data transmission serve. 2004, the Turing Award, 2008, the Japan Prize he was awarded.

Biography

Bob Kahn is the son of a high school director and a cousin of the cybernetician Herman Kahn. He first began to study chemistry at Queens College, but then switched to electrical engineering at the City College of New York, where he earned a bachelor's degree (BA ) reached in 1960. A fellow of the National Science Foundation in 1962, he obtained an MA in 1964 and his PhD at John Thomas at Princeton University. Towards the end of his studies, he worked at Bell Laboratories on telephone technology for power plants, then at MIT as an assistant professor of electrical engineering at John Wozencraft.

He took leave in 1966 to his advice from MIT in order to gain practical experience at Bolt Beranek and Newman. He began to work on networks, and submitted to the Advanced Research Projects Agency (ARPA ), the offer for the tender for the Arpanet, which eventually won the contract. Kahn decided not to return to MIT, and was then responsible for the system design of the ARPANET. In addition, he was the communications theorist in the design of the Interface Message Processor. With Steve Levy, he built also on the commercial Arpanet offshoot Telenet.

1972 brought him Arpanet project manager Lawrence " Larry " Roberts ( who joined soon after on Kahn's suggestion to Telenet ) for now DARPA (Defense Advanced Research Projects Agency ) renamed ARPA. In October of the same year he presented at the International Computer Communication Conference ( ICCC ) Arpanet with 40 computers connected to the public. After a brief reversal of automation technology, he returned to the networks. In the DARPA he had the basic idea for the Transmission Control Protocol, as he worked on projects for packet- switched data transmission via satellite and via radio. In view of the problem, to mediate between such networks and the Arpanet, he recognized the need for open network architectures that allow different networks regardless of the hardware and software to communicate with each other.

As of spring 1973, Vinton G. Cerf supported him, whom he had met as a graduate student in 1969 with tests of the first ARPANET node at UCLA and was now an assistant professor at Stanford, in which TCP project. In developing them served without the participation Kahn for the original Arpanet designed Network Control Program (NCP ) as a basis. In September 1973, she presented a first version, which was also published in May 1974, and the already distinguished between TCP and IP.

As Cerf in 1976 came to DARPA, the latter took over from Kahn to 1982 the lead role in the Internet project and directed the development of TCP. Kahn was in 1979 director of the Information Processing Techniques Office ( IPTO ) of the DARPA. In this position, he launched the billion -US-dollar Strategic Computing Initiative of the U.S., the hitherto largest public project in computer research and development.

1980 TCP / IP has been recognized by the U.S. Department of Defense as a standard, and the NCP protocol suite of the ARPANET was switched back on its separation from MILNET headed Kahn on TCP / IP, and thus laid the foundation of the modern Internet on 1 January 1983. A year later, Kahn gave the project again from internet, this time to Barry Leiner.

1985 Kahn left DARPA and in 1986 founded the Corporation for National Research Initiatives ( CNRI ), which he is chairman. The CNRI is a non-profit organization to research and development of information infrastructure push. There he promoted, inter alia, the idea of ​​the Digital Library and designed for a handle system that is created as Rekonzipierung of the Internet, and is based on the Digital Object Identifier directory. A spin -off of the CNRI is co-founded by Kahn and Cerf Internet Society.

Kahn's pioneering role in the Internet manifests itself as well in the fact that two early Requests for Comments directly related to conversations with him, RFC 6 ( Conversation With Bob Kahn ) and RFC 372 ( Notes On A Conversation With Bob Kahn On The ICCC ). Kahn himself is the author of RFC 29, RFC 136 and RFC 371

Honors

1997 gave U.S. President Bill Clinton and Cerf him the National Medal of Technology, the highest technology award from the United States, and in 2005 gave George W. Bush them the Presidential Medal of Freedom (Freedom Medal), one of the highest civilian awards in the United States. Also numerous other awards share the two of them, including the IEEE Alexander Graham Bell Medal in 1997, the Prince of Asturias Award in 2002 ( with Tim Berners -Lee and Lawrence Roberts), 2004, the Turing Award and the Charles Stark Draper Price ( with Leonard Kleinrock and Lawrence Roberts), 2006, introduction to the National Inventors Hall of Fame and the 2008 Japan Prize.

In addition, Kahn is a member of the National Academy of Engineering, a Fellow of the ACM, the IEEE, the AAAI, the Computer History Museum and Marconi Fellow. He was a member of the Computer Science and Technology Board of the National Academy of Engineering, the Board of Regents of the United States National Library of Medicine and the President's Advisory Council to the national information infrastructure, and in the President's Information Technology Advisory Committee and the Advisory Committee on International Communications and Information Policy of the U.S. Department of State.

Kahn holds honorary doctorates of the Universities of Central Florida, George Mason, Maryland, Pavia, Pisa, Princeton and the ETH Zurich, and is Honorary Fellow of University College London.

Writings

  • By Vinton G. Cerf: A Protocol for Packet Network Inter Communications. IEEE Transactions on Communications, Vol COM -22, No. 5, May 1974, pp. 637-648.
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