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Kleinrock (Leonard) papers
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Collection Details
Table of contents What's This?
  • Conditions Governing Access
  • Conditions Governing Reproduction and Use
  • Preferred Citation
  • Provenance/Source of Acquisition
  • Processing Information
  • UCLA Catalog Record ID
  • Biography/History
  • Scope and Content
  • Organization and Arrangement
  • Existence and Location of Copies

  • Contributing Institution: UCLA Library Special Collections
    Title: Leonard Kleinrock papers
    Source: United States. Advanced Research Projects Agency
    Identifier/Call Number: LSC.2337
    Physical Description: 2.4 Linear Feet (6 document boxes)
    Date (inclusive): 1957-1980
    Abstract: Leonard Kleinrock, UCLA faculty in Computer Science since 1964. He received his BA from CCNY and MA and PhD from the Massachusetts Institute of Technology. Kleinrock ran the University of California, Los Angeles (UCLA) Network Measurement Center (NMC), the first ARPANET node. The Kleinrock Papers include: McGraw-Hill Publishers correspondence; technical notes; Advanced Research Projects Agency progress reports; publications materials; Interface Message processor logs; SPADE administrative notes; Miscellaneous Network Notes; ARPANET Satellite System notes; Packet Radio Temp notes; and Networks Use Technical notes.
    Physical Location: Stored off-site at SRLF. All requests to access special collections materials must be made in advance through our electronic paging system using the request button located on this page.
    Language of Material: English .

    Conditions Governing Access

    COLLECTION STORED OFF-SITE AT SRLF: Open for research. All requests to access special collections materials must be made in advance through our electronic paging system using the request button located on this page.

    Conditions Governing Reproduction and Use

    Property rights to the physical object belong to the UC Regents. Some copyrights were transferred to the UC Regents. It is the responsibility of the researcher to determine who holds the copyright and pursue the copyright owner or his or her heir for permission to publish where The UC Regents do not hold the copyright.

    Preferred Citation

    [Identification of item], Leonard Kleinrock papers (Collection 2337). UCLA Library Special Collections, Charles E. Young Research Library, University of California, Los Angeles.

    Provenance/Source of Acquisition

    Materials donated by Leonard Kleinrock.

    Processing Information

    Collections are processed to a variety of levels depending on the work necessary to make them usable, their perceived user interest and research value, availability of staff and resources, and competing priorities. Library Special Collections provides a standard level of preservation and access for all collections and, when time and resources permit, conducts more intensive processing. These materials have been arranged and described according to national and local standards and best practices.
    Processed by May Chua in 2012, with additional material processed by Sonia Collazo and Jason Hong in 2013 under the supervision of Charlotte Brown, University Archivist.

    UCLA Catalog Record ID

    UCLA Catalog Record ID: 8155003 


    Leonard Kleinrock was born in New York City on June 13, 1934. 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 computer science from the Massachusetts Institute of Technology (MIT) in 1959 and 1963 respectively. Kleinrock developed a mathematical theory of packet networks, the technology underpinning the Internet, while a graduate student at MIT in the period from 1960-1962. Kleinrock has served as a Professor of Computer Science at the University of California Los Angeles (UCLA) since 1963. The first host-to-host ARPANET connection occurred in the UCLA Network Measurement Center run by Kleinrock (3420 Boelter Hall at UCLA) when his SDS Sigma 7 Host computer became the first node of the Internet in September 1969. From UCLA, Kleinrock directed the transmission of the first message to pass over the Internet on October 29, 1969. Kleinrock served with programmer Charley Kline as Chairman of the Computer Science department at UCLA from 1991-1995 and is a Distinguished Professor of Computer Science at UCLA. During his tenure at UCLA, Kleinrock supervised the research for 48 Ph.D. students and numerous M.S. students who formed a core of advanced networking experts. Kleinrock has published over 250 papers and authored six books on a wide array of subjects, including packet switching networks, packet radio networks, local area networks, broadband networks, gigabit networks, nomadic computing, intelligent software agents, performance evaluation, and peer-to-peer networks. Kleinrock received numerous awards including the prestigious National Medal of Science in 2008 for his contributions to the mathematical theory of modern data networks and for the functional specification of packet switching. In 2012, Kleinrock was inducted into the Internet Hall of Fame by the Internet Society.

    Scope and Content

    Leonard Kleinrock's papers include: correspondence for publication of his book, Communication nets: Stochastic message flow and delay. (McGraw-Hill, 1964); technical notes from his design work at Digital Equipment Corporation (DEC); and materials from the Network Measurement Center (NMC) which discuss the early development of the Internet in the United States during the 1960s and 1970s. Materials from the NMC consist of notes and papers from the first ARPANET node at UCLA. The papers include Interface Message Processor Logs documenting the first message on the ARPANET and progress reports to ARPA. The notes detail the technical evolution of the ARPANET Satellite System (ASS) and the ALOHA system including Request for Comments (RFC) and a Bolt Beranek and Newman Quarterly Technical Report. There are also Administrative notes from the SPADE Group, responsible for the Sigma 7 system software and programming support for the ARPA project, consisting of Agenda, meeting notes, and bug lists including NUTS notes referring to the TENEX program. Finally there are notes detailing Packet Radio Communication and its application for distribution of data consisting of meeting notes, academic papers, and protocol notes. Arrangement is by note number first and then chronologically providing a technical progression for the history of the ARPANET.

    Organization and Arrangement

    The collection is arranged into the following series:
    • 1. McGraw-Hill Publishers Correspondence
    • 2. Technical Notes
    • 3. Progress Reports to the Advanced Research Projects Agency
    • 4. Publications
    • 5. Interface Message Processor Logs
    • 6. SPADE Administrative Notes
    • 7. Miscellaneous Network Notes
    • 8. ARPANET System Satellite Notes and Request for Comments
    • 9. Packet Radio Temp Notes
    • 10. Networks Use Technical (NUTS) Notes
    Manuals and documents are ordered chronologically within series. Notes are ordered by note number first and then chronologically to reflect the original arrangement which provides a progression for the history of the ARPANET.

    Existence and Location of Copies

    Selected items were digitized for the Kleinrock Internet History Center (KIHC) Digital Collections: http://digital2.library.ucla.edu/internethistory/. 

    Subjects and Indexing Terms

    ARPANET (Computer network).
    Internet -- History -- United States -- Archives.
    Packet switching (Data transmission) -- Archives.
    Digital Equipment Corporation
    Kleinrock, Leonard--Archives.
    Postel, Jonathan Bruce
    United States. Advanced Research Projects Agency