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|Developer(s)||Robert M. Supnik|
3.10 / February 24, 2019
|Operating system||Windows, Linux, macOS, FreeBSD, OpenBSD, NetBSD, OpenVMS|
|Platform||x86, IA-64, PowerPC, SPARC, ARM|
SIMH is a highly portable, multi-system emulator which runs on Windows, Linux, macOS, 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.
Advanced Computer Design
Control Data Corporation
Digital Equipment Corporation
- VAX Family Systems
- Intel systems 8010 and 8020
- 16-bit series
- 32-bit series
Lincoln Labs – MIT Research Lab
Sage Computer Technology
- Sage II
Scientific Data Systems
- SWTPC 6800
Xerox 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
- Debian Package
- FreeBSD Port
- UNIX: Old School. Using SIMH to explore UNIX history - Matthew Hoskins
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