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Leonard Kleinrock, Ph.D. (born 1934) is a computer scientist, and a professor of computer science at UCLA, who made several extremely important contributions to the field of computer networking, in particular to the theoretical side of computer networking. He also played an important role in the development of the ARPANET at UCLA. Image File history File links Leonard Kleinrock and IMP1 source:Leonard Kleinrocks web site ([1]) This work is copyrighted, and used with permission. ...
Image File history File links Leonard Kleinrock and IMP1 source:Leonard Kleinrocks web site ([1]) This work is copyrighted, and used with permission. ...
1934 (MCMXXXIV) was a common year starting on Monday (link will take you to calendar). ...
Computer science (informally: CS or compsci) is, in its most general sense, the study of computation and information processing, both in hardware and in software. ...
Binomial name Ucla xenogrammus Holleman, 1993 The largemouth triplefin, Ucla xenogrammus, is a fish of the family Tripterygiidae and only member of the genus Ucla, found in the Pacific Ocean from Viet Nam, the Philippines, Palau and the Caroline Islands to Papua New Guinea, Australia (including Christmas Island), and the...
This article or section is in need of attention from an expert on the subject. ...
ARPANET logical map, March 1977. ...
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 packet switching, the basic technology behind the Internet. His initial contribution to this field was his doctoral thesis in 1962, published in book form in 1964; he later published several of the standard works on the subject. Queueing theory (also commonly spelled queuing theory) is the mathematical study of waiting lines (or queues). ...
In computer networking and telecommunications, packet switching is a communications paradigm in which packets (messages or fragments of messages) are individually routed between nodes, with no previously established communication path. ...
1962 (MCMLXII) was a common year starting on Monday (the link is to a full 1962 calendar). ...
1964 (MCMLXIV) was a leap year starting on Wednesday (the link is to a full 1964 calendar). ...
He has 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 Farouk Kamoun, is now critical to the operation of today's world-wide Internet. Hierarchical routing: Routing that is based on hierarchical addressing. ...
Template:A year The 1970s decade refers to the years from 1970 to 1979, inclusive. ...
ARPANET and internet In 1969, ARPANET, the world's first electronic computer network, was established on October 29 between nodes at Kleinrock's lab at UCLA and Douglas Engelbart's lab at SRI. Interface Message Processors at both sites served as the backbone of the first Internet [1]. For the Stargate SG-1 episode, see 1969 (Stargate SG-1). ...
ARPANET logical map, March 1977. ...
October 29 is the 302nd day of the year (303rd in leap years) in the Gregorian calendar. ...
Binomial name Ucla xenogrammus Holleman, 1993 The largemouth triplefin, Ucla xenogrammus, is a fish of the family Tripterygiidae and only member of the genus Ucla, found in the Pacific Ocean from Viet Nam, the Philippines, Palau and the Caroline Islands to Papua New Guinea, Australia (including Christmas Island), and the...
Dr. Douglas C. Engelbart (born January 30, 1925 in Oregon) is an American inventor of German descent. ...
SRI Internationals main campus on Ravenswood Avenue, Menlo Park, California SRI International is one of the worlds largest contract research institutions. ...
The Interface Message Processor was the packet-switching node (actually a mini-computer with special-purpose interfaces) used to make up the ARPANET in the late 1960s and 1970s. ...
The Internet backbone refers to the main trunk connections of the Internet. ...
In addition to SRI and UCLA, UCSB, and the University of Utah were part of the original four network nodes. By December 5, 1969, the entire 4-node network was connected. The University of California, Santa Barbara (UCSB) is a coeducational public university located in Santa Barbara County, California. ...
The University of Utah (also The U or the U of U or the UU) is a public university in Salt Lake City, Utah. ...
December 5 is the 339th day (340th in leap years) of the year in the Gregorian calendar. ...
For the Stargate SG-1 episode, see 1969 (Stargate SG-1). ...
In 1988, Kleinrock chaired a group which presented the report Toward a National Research Network to congress [2]. This report was highly influential upon then-Senator Al Gore who used it to develop the Gore Bill or the High Performance Computing Act of 1991 [3], which was instrumental in the development of the Internet as it is known today. [4]. In particular, it led directly to the development of the 1993 web browser MOSAIC, which was funded by the High-Performance Computing and Communications Initiative, a program created by the High Performance Computing Act of 1991. Albert Arnold Gore, Jr. ...
Mosaic was the first popular World Wide Web browser and Gopher client. ...
Education and career
He graduated from the legendary Bronx High School of Science in 1951, and received a B.E.E. in 1957 from the City College of New York, and an S.M. and a Ph.D. in EECS from MIT in 1959 and 1963 respectively. He then joined the faculty at UCLA, where he remains to the present day; during 1991-1995 he served as the Chairman of the Computer Science Department there. The Bronx High School of Science, commonly called Bronx Science, or just Science, is a specialized New York City public high school located in the Bedford Park section of the Bronx, with no tuition charges and admission by exam. ...
1951 (MCMLI) was a common year starting on Monday; see its calendar. ...
1957 (MCMLVII) was a common year starting on Tuesday of the Gregorian calendar. ...
The City College of The City University of New York (known more commonly as City College of New York or simply City College, CCNY, or colloquially as City)[1] is a senior college of the City University of New York, in New York City. ...
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EECS (sometimes pronounced eeks) is an abbreviation for Electrical Engineering and Computer Sciences. ...
Mapúa Institute of Technology (MIT, MapúaTech or simply Mapúa) is a private, non-sectarian, Filipino tertiary institute located in Intramuros, Manila. ...
He has received numerous professional awards.
See also ARPANET logical map, March 1977. ...
Binomial name Ucla xenogrammus Holleman, 1993 The largemouth triplefin, Ucla xenogrammus, is a fish of the family Tripterygiidae and only member of the genus Ucla, found in the Pacific Ocean from Viet Nam, the Philippines, Palau and the Caroline Islands to Papua New Guinea, Australia (including Christmas Island), and the...
Computer science, or computing science, is the study of the theoretical foundations of information and computation and their implementation and application in computer systems. ...
Nerds 2. ...
Further reading - Leonard Kleinrock, "Information Flow in Large Communication Nets", Ph.D. Thesis Proposal, Massachusetts Institute of Technology, July 1961
- Leonard Kleinrock, "Information Flow in Large Communication Nets", RLE Quarterly Progress Report, Massachusetts Institute of Technology, July 1961
- Leonard Kleinrock, "Information Flow in Large Communication Nets", RLE Quarterly Progress Report, Massachusetts Institute of Technology, April 1962
- Leonard Kleinrock, Communication Nets: Stochastic Message Flow and Design (McGraw-Hill, 1964)
- Leonard Kleinrock, Queueing Systems: Volume I – Theory (Wiley Interscience, New York, 1975)
- Leonard Kleinrock, Queueing Systems: Volume II – Computer Applications (Wiley Interscience, New York, 1976)
- Leonard Kleinrock, Farok Kamoun, "Hierarchical Routing for Large Networks, Performance Evaluation and Optimization", Computer Networks, Vol. 1, No. 3, pp. 155–174, January 1977
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