Longtime SIMH user here. The most amazing aspect of this project is the tangential remark visible in its Wikipedia page (https://en.wikipedia.org/wiki/SIMH http

Longtime SIMH user here. The most amazing aspect of this project is the tangential remark visible in its Wikipedia page (https://en.wikipedia.org/wiki/SIMH https://en.wikipedia.org/wiki/SIMH): has been in development in one form or another since the 1960s: this software predates UNIX by approximately a decade.