Introduction to Demos
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.