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Shared Variables information


Shared Variables are a feature of the programming language APL which allows APL programs running on one processor to share information with another processor.[1] Although originally developed for mainframe computers, Shared Variables were also used in personal computer implementations of APL.[1] Shared Variables could be used to control peripheral devices, or to communicate with external files, database management systems, or other users.[1] Shared Variables were first introduced by International Business Machines Corporation (IBM) in their APL.SV software product in 1973,[2] and are still available as of 2017, in APLs from IBM and Dyalog,[3] for the operating systems Linux and Windows.

  1. ^ a b c Allen Kent; James G. Williams, eds. (1987). "APL for Microcomputers". Encyclopedia of Microcomputers. Vol. 1. pp. 206–207. ISBN 0824727002.
  2. ^ A.D. Falkoff; K.E. Iverson (1973). "The Design of APL". IBM Journal of Research and Development. 17 (4): 324–334. doi:10.1147/rd.174.0324. Retrieved 2017-12-11.
  3. ^ "Shared Variable Principles". Dyalog APL 15.0 Help. 2017-07-14. Retrieved 2017-12-11.

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Shared Variables

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