UNIX/32V

UNIX/32V

Developer	Bell Laboratories
OS family	Unix
Working state	Historic
Initial release	June 1979
Platforms	VAX

UNIX/32V was an early version of the Unix operating system from Bell Laboratories, released in June 1979. 32V was a direct port of the PDP-11 Seventh Edition Unix to the DEC VAX architecture.

UNIX/32V was released without paging virtual memory, retaining only the swapping architecture of Seventh Edition. A virtual memory system was added at Berkeley by Bill Joy and others in order to support Franz Lisp; this was released to other Unix licensees as the Third Berkeley Software Distribution (3BSD) in 1979. An independent implementation of virtual memory was done at AT&T's UNIX Support Group for the UNIX System III released in 1982. Thanks to the popularity of the two systems' successors, 4BSD and UNIX System V, UNIX/32V is an antecedent of nearly all modern Unix systems.

See also

• Ancient UNIX

References

• Marshall Kirk McKusick and George V. Neville-Neil, The Design and Implementation of the FreeBSD Operating System (Boston: Addison-Wesley, 2004), ISBN 0-201-70245-2, pp. 4–6.
• Thomas B. London and John F. Reiser, A UNIX Operating System for the DEC VAX-11/780 Computer, internal Bell Labs memo dated July 7, 1978, online copy available at Dennis Ritchie's home page, [1] or [2].

External links

• The Unix Heritage Society, (TUHS) a website dedicated to the preservation and maintenance of historical UNIX systems
  • Complete distribution of 32V with source code
  • Source code of the 32V kernel
• A MS Windows program that installs the SIMH emulator and a UNIX/32V image.
• Information about running UNIX/32V in SIMH