SIMSCRIPT

SIMSCRIPT is a free-form, English-like general-purpose simulation language conceived by Harry Markowitz and Bernard Hausner at the RAND Corporation in 1962. It was implemented as a Fortran preprocessor on the IBM 7090^[1] and was designed for large discrete event simulations. It influenced Simula.^[2]

Though earlier versions were released into the public domain, SIMSCRIPT was commercialized by Markowitz's company, California Analysis Center, Inc. (CACI), which produced proprietary versions SIMSCRIPT I.5^[3]^[4] and SIMSCRIPT II.5.

SIMSCRIPT II.5

SIMSCRIPT II.5^[5]^[6] was the last pre-PC incarnation of SIMSCRIPT, one of the oldest computer simulation languages. Although military contractor CACI released it in 1971, it still enjoys wide use in large-scale military and air-traffic control simulations.^[7]^[8]

SIMSCRIPT II.5 is a powerful, free-form, English-like, general-purpose simulation programming language. It supports the application of software engineering principles, such as structured programming and modularity, which impart orderliness and manageability to simulation models.^[9]

SIMSCRIPT III

SIMSCRIPT III^[10]Release 4.0 was available by 2009,^[11] and by then it ran on Windows 7, SUN OS and Linux and has Object-oriented features.^[12]

By 1997, SIMSCRIPT III already had a GUI interface to its compiler.^[13] The latest version is Release 5; earlier versions already supported 64-bit processing.^[14]

PL/I implementation

A PL/I implementation was developed during 1968-1969, based on the public domain version released by RAND corporation.^[15]

References

^ Reviews, C. T. I. (2016). Simulation With Arena. ISBN 978-1467273411. SIMSCRIPT ... was implemented asa Fortran preprocessor on the IBM 7090
^ Kristen Nygaard (1978). "The Development of the SIMULA Languages" (PDF). The development of .. SIMULA I and SIMULA 67... were influenced by the design of SIMSCRIPT ...
^ M. E. Kuhl. "The SIMSCRIPT III Programming Language for Modular Object ..." (PDF). ... and was followed by SIMSCRIPT I.5 from CACI in 1965
^ "A Look Back in Time: The CACI Story".
^ Philip J Kiviat. Simscript II.5: Programming language.
^ Edward C. Russell (1983). Building simulation models with SIMSCRIPT II.5. ISBN 9780918417008.
^ 1988 magazine quote: "today used principally by the U. S. military."
^ William G. Shepherd Jr. (September 1988). "Market Value - PCs on Wall Street". PC Computing. pp. 150–157.
^ Russell, Edward C. (1983). Building Simulation models with SIMSCRIPT II.5. Los Angeles: CACI.
^ "The SIMSCRIPT III programming language". doi:10.1109/WSC.2005.1574302. S2CID 8577001. SIMSCRIPT III is a programming language for discrete-event simulation. It is a major extension of its predecessor, SIMSCRIPT II.5, providing full support for ... Cite journal requires |journal= (help)
^ "SIMSCRIPT III Object-Oriented, Modular, Integrated software development tool". simscript.com.
^ Harry M. Markowitz (2009). Selected Works. p. 152. ISBN 978-9814470216. I told Ana Marjanski, who headed the SIMSCRIPT III project, that SIMSCRIPT already has entities, attributes plus sets. She explained that the clients want object ...
^ "SIMSCRIPT III User's Manual" (PDF). June 26, 1997.
^ "CACI Products". Retrieved March 12, 2019.
^ Jack Belzer; Albert G. Holzman; Allen Kent (1979). Encyclopedia of Computer Science and Technology: Volume 13. ISBN 978-0824722630. SIMSCRIPT. This PL/I based version, first developed in 1968-1969 ... of SIMSCRIPT I, particularly in large simulations at The RAND Corporation

This article is based on material taken from the Free On-line Dictionary of Computing prior to 1 November 2008 and incorporated under the "relicensing" terms of the GFDL, version 1.3 or later.

External links

CACI SIMSCRIPT page
History of Programming Languages: SIMSCRIPT
Oral history interview with Harry M. Markowitz, Charles Babbage Institute, University of Minnesota - Markowitz discusses his development of portfolio theory, sparse matrices, and his work at the RAND Corporation and elsewhere on simulation software development (including computer language SIMSCRIPT), modeling, and operations research.

[1] Reviews, C. T. I. (2016). Simulation With Arena. ISBN 978-1467273411. SIMSCRIPT ... was implemented asa Fortran preprocessor on the IBM 7090

[Simula.pdf-2] Kristen Nygaard (1978). "The Development of the SIMULA Languages" (PDF). The development of .. SIMULA I and SIMULA 67... were influenced by the design of SIMSCRIPT ...

[3] M. E. Kuhl. "The SIMSCRIPT III Programming Language for Modular Object ..." (PDF). ... and was followed by SIMSCRIPT I.5 from CACI in 1965

[4] "A Look Back in Time: The CACI Story".

[5] Philip J Kiviat. Simscript II.5: Programming language.

[6] Edward C. Russell (1983). Building simulation models with SIMSCRIPT II.5. ISBN 9780918417008.

[7] 1988 magazine quote: "today used principally by the U. S. military."

[PC1988-8] William G. Shepherd Jr. (September 1988). "Market Value - PCs on Wall Street". PC Computing. pp. 150–157.

[9] Russell, Edward C. (1983). Building Simulation models with SIMSCRIPT II.5. Los Angeles: CACI.

[10] "The SIMSCRIPT III programming language". doi:10.1109/WSC.2005.1574302. S2CID 8577001. SIMSCRIPT III is a programming language for discrete-event simulation. It is a major extension of its predecessor, SIMSCRIPT II.5, providing full support for ... Cite journal requires |journal= (help)

[11] "SIMSCRIPT III Object-Oriented, Modular, Integrated software development tool". simscript.com.

[12] Harry M. Markowitz (2009). Selected Works. p. 152. ISBN 978-9814470216. I told Ana Marjanski, who headed the SIMSCRIPT III project, that SIMSCRIPT already has entities, attributes plus sets. She explained that the clients want object ...

[13] "SIMSCRIPT III User's Manual" (PDF). June 26, 1997.

[14] "CACI Products". Retrieved March 12, 2019.

[15] Jack Belzer; Albert G. Holzman; Allen Kent (1979). Encyclopedia of Computer Science and Technology: Volume 13. ISBN 978-0824722630. SIMSCRIPT. This PL/I based version, first developed in 1968-1969 ... of SIMSCRIPT I, particularly in large simulations at The RAND Corporation

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