What is the history of SIMH?
The SIMH project started in 1993, at the suggestion of Larry Stewart of DEC. Its immediate purpose was to preserve the fading hardware and software record of early minicomputers. Since then, the project has been expanded to include other important systems, spanning the history of computing from the late 50’s to the late 80’s. SIMH’s core design is based on an earlier simulation system called MIMIC. MIMIC was written in the late 1960’s at Applied Data Research, by Mike McCarthy, Len Feshkens, and Bob Supnik. MIMIC was a mini-computer simulator that ran on the PDP-10. Its purpose was to facilitate the development and debugging of real-time embedded systems by using the the PDP-10 timesharing environment for program development, instead of the limited facilities of the native minicomputer environments. Ironically, given SIMH’s mission to preserve the computing record, all machine-readable copies of MIMIC have been lost. 1.4 Who writes and maintains SIMH? Many people have contributed, and