Jørn Jensen

Jørn Jensen
Jørn Jensen
Born	1925; Denmark
Died	2007 (aged 81–82)
Nationality	Denmark
Occupation	Computer programmer
Years active	1956–2005
Known for	Much pioneering computer programming in Denmark
Notable work	DASK programs; ALGOL 60 compilers

Jørn Jensen (1925 – 2007) was one of the earliest Danish computer programmers. Examined as a mechanical engineer, he had worked with electromechanical construction. In 1958, he was employed at the Danish Regnecentralen (RC), and very soon exhibited an extraordinary programming skill. He developed the main parts of the base programs to DASK, the first Danish computer. Among other programs, he designed a set of monitor programs to supervise the program running schedule on DASK. In tight collaboration with Peter Naur and others, he developed reliable, well documented compilers for the ALGOL 60 programming language.[1] In this context, he invented Jensen's Device, an ingenious exploitation of the name parameters to compute numerical series without using procedure parameters, as is needed in all programming languages, except ALGOL 60 and Simula 67.

After some 20 years at Regnecentralen, he continued his career in systems programming, and other types, at the Brown, Boveri & Cie electrical engineering company.

References

Daylight, Edgar G. (2005). "Peter Naur: A. M. Turing Award". ACM Awards. Association for Computing Machinery. Archived from the original on 12 February 2008. Retrieved 10 November 2020. Mentions Naur's work with Jensen on GIER ALGOL.

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[Gieralgol-1] Daylight, Edgar G. (2005). "Peter Naur: A. M. Turing Award". ACM Awards. Association for Computing Machinery. Archived from the original on 12 February 2008. Retrieved 10 November 2020. Mentions Naur's work with Jensen on GIER ALGOL.