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Model V

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  • Comment: This needs some work to get the references in shape (see WP:INCITE for guidance), but wow, this is a great topic. -- RoySmith (talk) 02:05, 7 September 2018 (UTC)

Picture of Bell Labs Model V, circa 1947
Relay equipment room of the Model V Computer installed at BRL[1]

The Model V was among the early[2] electromechanical general purpose computers,[3][4][5] designed by George Stibitz and built by Bell Telephone Laboratories, operational in 1946.

Only two machines were built: first one was installed at National Advisory Committee for Aeronautics, second (1947) at Ballistic Research Laboratory (BRL).[6][7]

Construction

Design was started in 1944.[8] The tape-controlled (Harvard architecture)[3][9] machine had two (design allowed for a total of six) processors ("computers")[10] that could operate independently,[4][11][12] an early form of multiprocessing.[3][13]

Weighed about 10 short tons (9.1 t).[8][14]

Significance

Model VI

Built and used internally by Bell Telephone Laboratories, operational in 1949.

Simplified version of the Model V: only one arithmetic unit, about half the relays.

Bibliography

  • Andrews, Ernest G. (1949-09-01). "The Bell Computer, Model VI". Proceedings of a Second Symposium on Large-scale Digital Calculating Machinery: 20–31 (58–69).
  • Research, United States Office of Naval (1953). A survey of automatic digital computers. Models V and VI. Office of Naval Research, Dept. of the Navy. pp. 9–10 (in reader: 15-16).
  • "The relay computers at Bell Labs : those were the machines, part 2". Datamation. The relay computers at Bell Labs : those were the machines, parts 1 and 2 | 102724647 | Computer History Museum. part 2: pp. 47, 49. May 1967.
  • Irvine, M. M. (July 2001). "Early digital computers at Bell Telephone Laboratories". IEEE Annals of the History of Computing. 23 (3). pdf: 25–27. doi:10.1109/85.948904. ISSN 1058-6180. {{cite journal}}: External link in |others= (help); Invalid |ref=harv (help)
  • Kaisler, Stephen H. (2016). "Chapter Three: Stibitz's Relay Computers". Birthing the Computer: From Relays to Vacuum Tubes. Cambridge Scholars Publishing. pp. 35–37. ISBN 9781443896313.
  • "Г. – Bell Labs – Model V" [G. – Bell Labs – Model V]. oplib.ru (in Russian). Google translation. Retrieved 2017-10-11. {{cite web}}: Cite has empty unknown parameter: |dead-url= (help); External link in |others= (help)CS1 maint: others (link)

Further reading

References

  1. ^ "Bell Labs Model V, circa 1947 · Gallery". gallery.lib.umn.edu. Retrieved 2018-09-07.
  2. ^ Williams, Samuel Byron (1959). Digital Computing Systems. McGraw-Hill. p. 89.
  3. ^ a b c Randell, B. (2012). The Origins of Digital Computers: Selected Papers. Springer Science & Business Media. pp. 239, 352. ISBN 9783642961458. [...] IBM SSEC [...] was hardly a stored program computer [...] being basically a tape-controlled machine in the tradition of the Harvard Mark I or the Bell Laboratories Model V.
  4. ^ a b Belzer, Jack; Holzman, Albert G.; Kent, Allen (1976). Encyclopedia of Computer Science and Technology: Volume 3 - Ballistics Calculations to Box-Jenkins Approach to Time Series Analysis and Forecasting. CRC Press. p. 200. ISBN 9780824722531.
  5. ^ Bullynck 2015.
  6. ^ Ceruzzi 1983, p. 95.
  7. ^ Datamation 1967, p. 47.
  8. ^ a b Alt & 21 1948, p. 1.
  9. ^ Tomash 2008, p. 37.
  10. ^ Ceruzzi 1983, p. 96.
  11. ^ Open Library.
  12. ^
  13. ^ Dasgupta, Subrata (2014-01-07). It Began with Babbage: The Genesis of Computer Science. Oxford University Press. p. 63. ISBN 9780199309429.
  14. ^ Irvine 2001, p. 25.
  15. ^ Ceruzzi 1983, p. 98.
  16. ^ Thompson, Thomas M. (1983). From Error-Correcting Codes Through Sphere Packings to Simple Groups. Cambridge University Press. pp. 15–17. ISBN 9780883850374.

Comp-hardware-stub

Category:1940s computers Category:Early computers Category:Electro-mechanical computers Category:Computer-related introductions in 1946