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ARRA (computer)
First Dutch computer

The ARRA (for "Automatische Relais Rekenmachine Amsterdam", Automatic Relay Calculator Amsterdam) was the first Dutch computer, and was built from relays for the Dutch Mathematical Centre (Dutch: Mathematisch Centrum), which later became the Centrum Wiskunde & Informatica (CWI).

It was designed and built by Carel Scholten and Bram Loopstra, and was finished in 1952. Because of reliability problems it was soon taken out of commission, and "updated" to the ARRA II, which actually was a completely new design. In December 1953, electronic ARRA II performed its first programs and was completed in 1954.

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See also

Other computers designed and built at the Mathematical Centre:

  • ARRA II (computer)
  • FERTA (computer)
  • ARMAC (computer), 19565

Other very early Dutch computers:

References

  1. Research, United States Office of Naval (1953). A survey of automatic digital computers. Office of Naval Research, Dept. of the Navy. p. 6. https://archive.org/details/bitsavers_onrASurveyomputers1953_8778395 ↩

  2. Nijholt, A. (2014-06-28). Computers and Languages: Theory and Practice. Elsevier. p. 26. ISBN 9781483299426. 9781483299426 ↩

  3. Metropolis, Nicholas (2014-06-28). History of Computing in the Twentieth Century. Elsevier. p. 565. ISBN 9781483296685. 9781483296685 ↩

  4. Alberts, Gerard; Blij, F. van der; Nuis, J. (1987). Zij mogen uiteraard daarbij de zuivere wiskunde niet verwaarloozen (in Dutch). Centrum voor Wiskunde en Informatica. p. 285. ISBN 9789061963202. 9789061963202 ↩

  5. "COMPUTERS, OVERSEAS: 1. ARMAC, Mathematical Centre, Amsterdam". Digital Computer Newsletter. 9 (1): 9–11. Jan 1957. "COMPUTERS, OVERSEAS: 5. Mathematical Centre, ARMAC, Amsterdam, Holland". Digital Computer Newsletter. 9 (3): 17. Jul 1957. https://apps.dtic.mil/sti/citations/AD0694623 ↩

  6. Research, United States Office of Naval (1953). A survey of automatic digital computers. Office of Naval Research, Dept. of the Navy. p. 79. https://archive.org/details/bitsavers_onrASurveyomputers1953_8778395 ↩