Roger Scantlebury

Roger Anthony Scantlebury (born August 1936) is a British computer scientist who worked at the National Physical Laboratory (NPL) and later at Logica.

Scantlebury participated in pioneering work to develop packet switching and associated communication protocols at the NPL in the late 1960s. He proposed the use of the technology in the ARPANET, the forerunner of the Internet, at the inaugural Symposium on Operating Systems Principles in 1967. During the 1970s, he was an active member of international working groups that developed concepts for the interconnection of computer networks.

Early life

Roger Scantlebury was born in Ealing in 1936.

Career

National Physical Laboratory

Scantlebury worked with Keith Bartlett at the National Physical Laboratory in south-west London, in collaboration with the National Research Development Corporation (NRDC). His early work was on the Automatic Computing Engine and English Electric DEUCE computers.[1]

Following this he worked with Donald Davies on his pioneering packet switching concepts. In October 1967, he attended the Symposium on Operating Systems Principles in the United States, where he gave an exposition of packet-switching, developed on the NPL Data Communications Network.[2][3][4] Also attending the conference was Larry Roberts,[5] from the ARPA; this was the first time that Larry Roberts had heard of packet switching.[6] Scantlebury persuaded Roberts and other American engineers to incorporate the concept into the design for the ARPANET.[7]

Scantlebury is one of the first people to describe the term protocol in a data-communications context in an April 1967 memorandum entitled "A Protocol for Use in the NPL Data Communications Network" written with Keith Bartlett.[8][9] He was part of a team that developed the alternating bit protocol (ABP) in 1969.[10][11] Along with Donald Davies and Derek Barber he participated in the International Networking Working Group (INWG) from 1972, initially chaired by Vint Cerf.[12][13] He was acknowledged by Bob Kahn and Vinet Cerf in their 1974 paper on internetworking, "A Protocol for Packet Network Intercommunication",[14] and he co-authored the standard agreed by the INWG in 1975, "Proposal for an international end to end protocol".[15]

Later, as head of the data networks group within the Computer Science Division, he was responsible for the UK technical contribution to the European Informatics Network, a datagram network linking CERN, the French research centre INRIA and the UK’s National Physical Laboratory.[1][16][17]

Logica

He joined Logica in 1977 in their Communications Division,[1] where he worked on the CCITT (ITU-T) X.25 protocol and with the formation of the Euronet, a virtual circuit network using X.25.[18][19] He moved to the Finance Division in 1981.[1]

Personal life

He married Christine Appleby in 1958 in Middlesex; they had two sons in 1961 and 1966, and a daughter in 1963. He lives in Esher.

Scantlebury was influential in persuading NPL to sponsor a gallery about "Technology of the Internet" at The National Museum of Computing, which opened in 2009.[20]

See also

References
  1. Communications Standards: State of the Art Report 14:3
  2. Needham, Roger M. (2002). "Donald Watts Davies, C.B.E. 7 June 1924 – 28 May 2000". Biographical Memoirs of Fellows of the Royal Society. 48: 87–96. doi:10.1098/rsbm.2002.0006. ISSN 1748-8494.
  3. Murray, Andrew (12 March 2007). The Regulation of Cyberspace: Control in the Online Environment. Routledge. ISBN 9781135310745 – via Google Books.
  4. Hafner, Katie; Lyon, Matthew (21 January 1998). Where Wizards Stay Up Late: The Origins Of The Internet. Simon and Schuster. ISBN 9780684832678 – via Google Books.
  5. at 14:10, Richard Speed 29 Oct 2019. "Are you coming to the party dressed as an IMP? ARPANET @ 50". www.theregister.co.uk. Retrieved 2019-11-09.
  6. Feder, Barnaby J. (4 June 2000). "Donald W. Davies, 75, Dies; Helped Refine Data Networks". The New York Times. ISSN 0362-4331. Retrieved 2019-11-09 – via NYTimes.com.
  7. Abbate, Janet (2000). Inventing the Internet. MIT Press. ISBN 9780262511155 – via Google Books.
  8. Naughton, John (2015-09-24). A Brief History of the Future. Orion. ISBN 978-1-4746-0277-8.
  9. Cambell-Kelly, Martin (1987). "Data Communications at the National Physical Laboratory (1965-1975)". Annals of the History of Computing. 9 (3/4): 221–247.
  10. Davies, Donald Watts (1979). Computer networks and their protocols. Internet Archive. Chichester, [Eng.] ; New York : Wiley. pp. 206.
  11. Naughton, John (24 September 2015). A Brief History of the Future. Orion. ISBN 9781474602778 – via Google Books.
  12. Andrew L. Russell (30 July 2013). "OSI: The Internet That Wasn't". IEEE Spectrum. Vol. 50 no. 8.
  13. McKenzie, Alexander (2011). "INWG and the Conception of the Internet: An Eyewitness Account". IEEE Annals of the History of Computing. 33 (1): 66–71. doi:10.1109/MAHC.2011.9. ISSN 1934-1547. Perhaps the only historical difference that would have occurred if DARPA had switched to the INWG 96 protocol is that rather than Cerf and Kahn being routinely cited as “fathers of the Internet,” maybe Cerf, Scantlebury, Zimmermann, and I would have been.
  14. Cerf, V.; Kahn, R. (1974). "A Protocol for Packet Network Intercommunication" (PDF). IEEE Transactions on Communications. 22 (5): 637–648. doi:10.1109/TCOM.1974.1092259. ISSN 1558-0857. The authors wish to thank a number of colleagues for helpful comments during early discussions of international network protocols, especially R. Metcalfe, R. Scantlebury, D. Walden, and H. Zimmerman; D. Davies and L. Pouzin who constructively commented on the fragmentation and accounting issues; and S. Crocker who commented on the creation and destruction of associations.
  15. Cerf, V.; McKenzie, A; Scantlebury, R; Zimmermann, H (1976). "Proposal for an international end to end protocol". ACM SIGCOMM Computer Communication Review. 6: 63–89. doi:10.1145/1015828.1015832.
  16. A, BarberD L. (1975-07-01). "Cost project 11". ACM SIGCOMM Computer Communication Review. 5 (3): 12–15. doi:10.1145/1015667.1015669.
  17. "EIN (European Informatics Network)". Computer History Museum. Retrieved 2020-02-03.
  18. Dunning, A.J. (1977-12-31). "Origins, development and future of the Euronet". Program. Emeraldinsight.com. 11 (4): 145–155. doi:10.1108/eb046759.
  19. Kerssens, Niels (2019-12-13). "Rethinking legacies in internet history: Euronet, lost (inter)networks, EU politics". Internet Histories. 0: 1–17. doi:10.1080/24701475.2019.1701919. ISSN 2470-1475.
  20. "Technology of the Internet". The National Museum of Computing. Retrieved 3 October 2017.
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