Introduction to Demos
Graham Birtwistle
Abstract
Graham Birtwistle
Abstract
Demos [1,2] is yet another discrete event simulation language hosted in Simula. It was released in 1979 and is now running on IBM, DEC, UNIVAC, and CDC hardwares amongst others. The paper contains a short introduction to Simula's object and context features; an explanation of the process approach to simulation; a brief comparison of Simula and GPSS; and finally, the main features of Demos are presented via an example.
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Demos [1,2] is yet another discrete event simulation language hosted in Simula. It was released in 1979 and is now running on IBM, DEC, UNIVAC, and CDC hardwares amongst others. The paper contains a short introduction to Simula's object and context features; an explanation of the process approach to simulation; a brief comparison of Simula and GPSS; and finally, the main features of Demos are presented via an example.
Key concepts: Simula, GPSS, Computer science, IBM, Context (archaeology), Discrete event simulation, Process (computing), Programming language