SIMH

SIMH
Developer(s) Robert M. Supnik
Initial release 1993[1]
Stable release
3.9 / May 3, 2012 (2012-05-03)
Operating system Windows, Linux, Mac OS X, FreeBSD, OpenBSD, NetBSD, OpenVMS
Platform x86, IA-64, PowerPC, SPARC, ARM
Type Hardware virtualization
License MIT (modified)
Website simh.trailing-edge.com

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.

History

SIMH was based on a much older systems emulator called MIMIC, which was written in the late 1960s at Applied Data Research.[1] SIMH was started in 1993 with the purpose of preserving minicomputer hardware and software which was fading into obscurity.[1]

Emulated Hardware

Version 6 Unix for the PDP-11, running in SIMH
Version 7 Unix for the PDP-11, running in SIMH
"4.3 BSD UNIX" from the University of Wisconsin, on a simulated VAX.

SIMH emulates hardware from the following companies.

Data General

Digital Equipment Corporation

GRI Corporation

Hobbyist Projects

IBM

Interdata

Hewlett-Packard

Honeywell

MITS

Royal-Mcbee

Scientific Data Systems

References

  1. 1 2 3 "Preserving Computing's Past: Restoration and Simulation" Max Burnet and Bob Supnik, Digital Technical Journal, Volume 8, Number 3, 1996.
  2. ↑ http://www.schorn.ch/altair_5.php
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