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Simh

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

SIMH is a highly portable, multi-system emulator which runs on Windows, Linux, Mac OS X, FreeBSD, OpenBSD, NetBSD, OpenVMS, and other operating systems. 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.

Contents

  • History 1
  • Emulated Hardware 2
    • Data General 2.1
    • Digital Equipment Corporation 2.2
    • GRI Corporation 2.3
    • Hobbyist Projects 2.4
    • IBM 2.5
    • Interdata 2.6
    • Hewlett-Packard 2.7
    • Honeywell 2.8
    • MITS 2.9
    • Royal-Mcbee 2.10
    • Scientific Data Systems 2.11
  • References 3
  • External links 4

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. ^ a b c "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

External links

  • Official website
  • 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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