Bram Jan Loopstra Explained

Bram Jan Loopstra (1925 – 1979)^[1] was a Dutch computing pioneer who worked at the Mathematisch Centrum, Amsterdam^[2] and then at Electrologica with Adriaan van Wijngaarden, Carel S. Scholten and Gerrit Blaauw.^[3] From 1956 until at least 1963 he was technical director of Electrologica.^[4] At his death after a long illness on March 22, 1979, he was adjunct director of the Philips International Institute.^[5]

At the Mathematisch Centrum he contributed to the ARRA I and II and ARMAC.

Selected publications

• Loopstra, B. J. "Logische synthese van rekencircuits." Stichting Mathematisch Centrum. Zuivere Wiskunde ZW 10/52 (Actualiteiten) (1952): 1-7.
• Loopstra, B. J. "The X—1 Computer." The Computer Journal 2.1 (1959): 39-43.
• Loopstra, B. J. "Input and output in the X-1 system." COMMUNICATIONS OF THE ACM. Vol. 2. No. 7. 1959.

Notes and References

1. https://archief.amsterdam/indexen/archiefkaarten_1939-1994/ Amsterdam Archive Cards
2. http://www-set.win.tue.nl/UnsungHeroes/heroes/scholten-loopstra.html Unsung Heroes in Dutch Computing History — Carel S. Scholten and Bram Jan Loopstra
3. Baayen, P. C., and J. Nuis. "In Memoriam A. van Wijngaarden 1916-1987 ."
4. https://heerdebeer.org/History/ComputerPioneers/publications/Electrologica_Nederlands_eerste_computerindustrie.pdf Nederlands eerste computerindustrie: van Electrologica tot Philips-Electrologica
5. http://leiden.courant.nu/issue/NLC/1979-03-23/edition/0/page/18 Obituary