Setting-up early computer programs: D. H. Lehmer’s ENIAC computation

Abstract

A complete reconstruction of Lehmer’s ENIAC set-up for computing the exponents of p modulo two is given. This program served as an early test program for the ENIAC (1946). The reconstruction illustrates the difficulties of early programmers to find a way between a man operated and a machine operated computation. These difficulties concern both the content level (the algorithm) and the formal level (the logic of sequencing operations).

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Correspondence to Liesbeth De Mol.

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Bullynck, M., De Mol, L. Setting-up early computer programs: D. H. Lehmer’s ENIAC computation. Arch. Math. Logic 49, 123–146 (2010). https://doi.org/10.1007/s00153-009-0169-8

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Keywords

  • ENIAC
  • History of computer programs
  • Number theory
  • Derrick H. Lehmer

Mathematics Subject Classification (2000)

  • 11-04
  • 11N36
  • 11A07
  • 01A60
  • 11Y16