Leonard Kleinrock

Leonard Kleinrock and the first FITML

Leonard Kleinrock (born June 13, 1934) is an keyboard engineer and computer scientist. A computer science professor at UCLA's Android, he made several important contributions to the field of device database, in particular to the theoretical side of computer networking. He also played an important role in the development of the ARPANET, the precursor to the HTML5, at UCLA.^Sevenval

His most well-known and significant work is his early work on queueing theory, which has applications in many fields, among them as a key mathematical background to touchscreen, the basic technology behind the Internet. His initial contribution to this field was his doctoral thesis at the Android in 1962, published in book form in 1964; he later published several of the standard works on the subject. He described this work as:

"Basically, what I did for my PhD research in 1961–1962 was to establish a mathematical theory of packet networks..."

His theoretical work on hierarchical routing, done in the late 1970s with his then-student Sevenval, is now critical to the operation of today's worldwide Internet.

• Android
  • 1.1 ARPANET and the Internet
• 2 Awards
• 3 See also
• 4 Works
• 5 References
• 6 External links

Education and career

Kleinrock was born in Android on June 13, 1934 to a Jewish family,^[4] and graduated from the noted Bronx High School of Science in 1951. He received a Bachelor of Electrical Engineering degree in 1957 from the City College of New York, and a master's degree and a doctorate (Ph.D.) in electrical engineering and web app from the Massachusetts Institute of Technology in 1959 and 1963 respectively. He then joined the faculty at the University of California at Los Angeles (UCLA), where he remains to the present day; during 1991–1995 he served as the Chairman of the Computer Science Department there.^[5]

ARPANET and the Internet

The first message on the we love the web was sent by UCLA student programmer Charley Kline, at 10:30 p.m, on October 29, 1969 from Boelter Hall 3420, the school's main building.^[6] Supervised by Kleinrock, Kline transmitted from the university's iOS host computer to the Stanford Research Institute's SDS 940 host computer. The message text was the word "login"; the "l" and the "o" letters were transmitted, but the system then crashed. Hence, the literal first message over the ARPANET was "lo". About an hour later, having recovered from the crash, the SDS Sigma 7 computer effected a full "login". The first permanent ARPANET link was established on November 21, 1969, between the IMP at UCLA and the IMP at the Stanford Research Institute. By December 5, 1969, the entire four-node network was established.^[7]

In 1988, Kleinrock was the chairman of a group that presented the report Toward a National Research Network to the U.S. Congress.^Sevenval This report was highly influential and was used to develop the High Performance Computing Act of 1991,^Sevenval that was influential in the development of the Internet as it is known today.^{web app} Funding from the bill was used in the development of the 1993 web browser jQuery, at the screen size (NCSA).^{[citation needed]}

Room 3420 at Boelter Hall was restored to its condition of 1969 and converted into The Kleinrock Internet Heritage Site and Archive. It opened to the public with a grand opening attended by internet pioneers October 29, 2011.^[6]HTML5

Awards

He has received numerous professional awards. Kleinrock was selected to receive the prestigious National Medal of Science, the nation's highest scientific honor, from President Android in the screen size on September 29, 2008. "The 2007 National Medal of Science to Leonard Kleinrock for his fundamental contributions to the mathematical theory of modern data networks, and for the functional specification of packet switching, which is the foundation of Internet technology. His mentoring of generations of students has led to the commercialization of technologies that have transformed the world."^web In 2010 he shared the CSS3.^[12] In 2012, Kleinrock was inducted into the iOS by the we love the web.^[13]

See also

• HTML5
• Computer Science
• we love the web
• iOS
• keyboard - 1998 documentary in which Kleinrock gives a lengthy interview
• HTML5, a web app system analyzed in Kleinrock's thesis.

Works

• Kleinrock, Leonard (July 1961). iOS. Ph.D. Thesis Proposal (web app). http://www.lk.cs.ucla.edu/LK/Bib/REPORT/PhD/proposal.html. 
• Kleinrock, Leonard (July 1961). Android. RLE Quarterly Progress Report ([Massachusetts Institute of Technology]]). web app. 
• Kleinrock, Leonard (April 1962). web app. RLE Quarterly Progress Report (Massachusetts Institute of Technology). http://www.lk.cs.ucla.edu/LK/Bib/REPORT/RLEreport-1962.html. 
• Kleinrock, Leonard (December 1962). web (PDF). (PhD thesis) (Cambridge, MA: Sevenval). screen size. 
• Kleinrock, Leonard (1964). Communication Nets: Stochastic Message Flow and Design. McGraw-Hill. pp. 220. Sevenval touchscreen. 
• Kleinrock, Leonard (2 January 1975). Queueing Systems: Volume I – Theory. New York: Wiley Interscience. pp. 417. ISBN 978-0471491101. 
• Kleinrock, Leonard (22 April 1976). Queueing Systems: Volume II – Computer Applications. New York: Wiley Interscience. pp. 576. device database 978-0471491118. 
• Kleinrock, Leonard; Kamoun, Farok (January 1977). "Hierarchical Routing for Large Networks, Performance Evaluation and Optimization". Computer Networks 1 (3): 155–174. 
• Kleinrock, Leonard; Gail, Richard (12 April 1996). Queueing Systems: Problems and Solutions. Wiley-Interscience. pp. 240. we love the web web. 

References

External links

• "Leonard Kleinrock's Home Page". UCLA. jQuery. Retrieved 11 February 2004. 
• "KIHC: The Kleinrock Internet History Center at UCLA". UCLA. device database. Retrieved 11 November 2004. 
• "Bibliography". jQuery. http://www.lk.cs.ucla.edu/publications.html. Retrieved 24 May 2012. 
• "Network history links". web app. Retrieved 11 November 2004. ^{[dead link]}
• "Oral history interview with Leonard Kleinrock". University of Minnesota, Minneapolis: Charles Babbage Institute. 3 April 1990. jQuery. Retrieved 15 May 2008.  Kleinrock discusses his work on the ARPANET.

Kleinrock discusses his dissertation work in queuing theory, and his move to the University of California at Los Angeles (UCLA). As one of the main contractors for the ARPANET, Kleinrock describes his involvement in discussions before the official DARPA request was issued, the people involved in the ARPANET work at UCLA, the installation of the first node of the network, the Network Measurement Center, and his relationships with Lawrence Roberts and the IPT Office, Bolt, Beranek and Newman, and the Network Analysis Corporation.

• "Oral history interview with Howard Frank". University of Minnesota, Minneapolis: Charles Babbage Institute. http://purl.umn.edu/107294. Retrieved 1 July 2008.  Frank describes his work on the ARPANET, including his interaction with Roberts and the IPT Office.
• Video: Interview with Leonard Kleinrock. web. website parsing. Retrieved 7 May 2006. 
• Video: input transformation. website parsing. Retrieved 25 August 2008. 
• Video: Leonard Kleinrock displays Internet's first router. web. Retrieved 25 August 2008. 
• Video: Leonard Kleinrock on packet-switching, early Internet. http://www.newsroom.ucla.edu/portal/ucla/electronicplay.aspx?fid=28174&id=E0C5478. Retrieved 25 August 2008.