|Developer(s)||Robert M. Supnik|
|Stable release||3.9 / May 3, 2012|
|Operating system||Windows, Linux, Mac OS X, FreeBSD, OpenBSD, NetBSD, OpenVMS|
|Platform||x86, IA-64, PowerPC, SPARC, ARM|
SIMH is a highly portable, multi-system emulator which runs on Windows, Linux, Mac OS X, FreeBSD, OpenBSD, NetBSD and OpenVMS. It is maintained by Bob Supnik, a former DEC engineer and DEC vice president, and has been in development in one form or another since the 1960s.
SIMH was based on a much older systems emulator called MIMIC, which was written in the late 1960s at Applied Data Research. SIMH was started in 1993 with the purpose of preserving minicomputer hardware and software which was fading into obscurity.
SIMH emulates hardware from the following companies.
Digital Equipment Corporation
- 16-bit series
- 32-bit series
Scientific Data Systems
- "Preserving Computing's Past: Restoration and Simulation" Max Burnet and Bob Supnik, Digital Technical Journal, Volume 8, Number 3, 1996.
- Official website
- SIMH on GitHub
- Additional VAX/MicroVAX models for SIMH
- Running VAX/VMS Under Linux Using SIMH
- OpenBSD/vax on SIMH
- Debian Package
- FreeBSD Port
- An operating system lecture based on SIMH
- UNIX: Old School. Using SIMH to explore UNIX history - Matthew Hoskins
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