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Language peer sets for ALCOR:
Designed 1961
1960s languages
Second generation
Early Cold War
Genus True ALGOL60s
Numerical Scientific
True ALGOL60s
Generation of Algol 60
Algol family
True ALGOL60s/1961
Generation of Algol 60/1961
Algol family/1961
True ALGOL60s/International
Generation of Algol 60/International
Algol family/International
Numerical Scientific
Numerical Scientific/1961
Numerical Scientific/aa



alternate simple view
Country: International
Designed 1961
Genus: True ALGOL60s
Sammet category: Numerical Scientific

For ALgol COnverteR - one of Sammet's four true subsets of ALGOL, defined by the ALCOR Group (ALCOR-Gruppe), which was a consortium of manufactures formed to build an ALGOL machine after the ALGOL meeting in Copenhagen in 1958.

The ALCOR (ALgol COnverteR) joint project was a very early conceptual design for the interpretation of ALGOL 60. The European group devised a high level language machine architecture which was emulated on various machines. The conceptual machine had two stacks which were used for expression parsing and evaluation. One stack held pending operations, while the other stack held intermediate results. Variables and return addresses were statically allocated in program memory.

Related languages
ALGOL 60 ALCOR   Subset
ALCOR Illinois ALCOR   Implementation of
ALCOR Subset Algol 60   Based on

  • Baumann, R. (1961) Baumann, R. "ALGOL manual of the ALCOR group, Pts. 1 & 2" Elektr. Rechen. No. 5 (Oct. 1961), 206-212; No. 6 (Dec. 1961), 259-265. (German)
  • Naur, Peter (1961) Naur, Peter "The Progress of ALGOL in Europe" Extract: Introduction Extract: The Central European Group (ALCOR) Extract: The Dutch Group Extract: The Scandinavian Group Extract: Independent Centers Extract: General Trends Extract: Conclusion
          in [Proceedings] (1961) Proceedings of the 1961 Computer Applications Symposium, Armour Research Foundation, Illinois Institute of Technology, Chicago, Illinois
  • Baumann, Richard (1962) Baumann, Richard "ALGOL-Manual der ALCOR-Gruppe" pp71-85
          in [ER] (1962) er, 4(2) April 1962
  • [ALCOR] (1963) [ALCOR] ALCOR group representation of ALGOL symbols pp597-599.
          in [ACM] (1963) [ACM] CACM 6(10) (Oct 1963)
  • Bauer, F. (1964) Bauer, F. L. review of Baumann 1961 Abstract
          in (1964) ACM Computing Reviews 5(03) May-June 1964
  • Bauer, F.L. (1964) Bauer, F.L. "Reply to Comments by P. A. Samet and P. J. Taylor" Abstract
          in [ACM] (1964) [ACM] CACM 7(07) July 1964
  • Peck, J.E. (1964) Peck, J.E. review of [ALCOR] 1963 Abstract
          in (1964) ACM Computing Reviews 5(03) May-June 1964
  • Samet, P. A. and Taylor, P. J. (1964) Samet, P. A. and Taylor, P. J. "Comments on the ALCOR group represenatation of ALGOL symbols" Abstract Online copy
          in [ACM] (1964) [ACM] CACM 7(07) July 1964
  • Baumann (1965) Baumann "ALGOL-Manual der ALCOR-Gruppe" Richard Oldenbourg 1965
          in [ACM] (1964) [ACM] CACM 7(07) July 1964
  • Bayer et al (1967) Rudolf Bayer, David Gries, Manfred Paul, and HansRudiger Wiehle "THF ALCOR ILLINOIS 70WM POST MORTEM DUMP" Information sciences report no. 3. Boeing Scientific Research Labs Scuttle Wash Information Sciences Lab Aug 67, Rept no. Dl-82-0640
          in [ACM] (1964) [ACM] CACM 7(07) July 1964
  • Sammet, Jean E. (1969) Sammet, Jean E. "Computer Languages - Principles and History" Englewood Cliffs, N.J. Prentice-Hall 1969. p.180.
          in [ACM] (1964) [ACM] CACM 7(07) July 1964
  • Wichmann, BA (1972) Wichmann, BA "Five ALGOL compilers" pp8-12 Abstract Extract: Conclusion
          in (1972) The Computer Journal 15(1) February 1972
  • Bauer (2001) Bauer, Friedrich L. "From the Stack Principle to Algol" Extract: Introduction to Zuse's PLankalkul Extract: Influence by Shannon Extract: sequential formula translation Extract: Recursion and the cellar principle Extract: arrival of Algol Extract: Mainz 22 and algol 58 Extract: ICIP, BNF, stack notation Extract: British hostility and absence, ZMD excellence Extract: Paris Conference Extract: The ALCOR Group Extract: Algol 58 and the death of Algol
          in [Computer Pioneers] (2001) Software Pioneers: Contributions to Software Engineering, Bonn, 28-29. 6. 2001 eds Broy, Manfred and Denert, Ernst Springer 2002
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