UNIX/32V
| Developer | Bell Laboratories |
|---|---|
| OS family | Unix |
| Working state | Historic |
| Initial release | June 1979 |
| Platforms | VAX |
| Official website | {{ |
Lua error in package.lua at line 80: module 'strict' not found. 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 Seventh Edition Unix to the DEC VAX architecture.
Before 32V, Unix had primarily run on DEC PDP-11 computers. The Bell Labs group that developed the operating system was dissatisfied with DEC, so its members refused DEC's offer to buy a VAX when the machine was announced in 1977. They had already begun a Unix port to the Interdata 8/32 instead. DEC then approached a different Bell Labs group in Holmdel, New Jersey, which accepted the offer and started work on what was to become 32V.[1]
Performed by Tom London and John F. Reiser,[2] porting Unix was made possible due to work done between the Sixth and Seventh Editions of the operating system to decouple it from its "native" PDP-11 environment. The 32V team first ported the C compiler (Johnson's pcc), adapting an assembler and loader written for the Interdata 8/32 version of Unix to the VAX. They then ported the April 15, 1978 version of Unix, finding in the process that "[t]he (Bourne) shell [...] required by far the largest conversion effort of any supposedly portable program, for the simple reason that it is not portable."[3]
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 Özalp Babaoğlu in order to support Franz Lisp; this was released to other Unix licensees as the Third Berkeley Software Distribution (3BSD) in 1979.[4] 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
References
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Thomas B. London and John F. Reiser (1978). A Unix operating system for the DEC VAX-11/780 computer. Bell Labs internal memo 78-1353-4.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- 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.
External links
- The Unix Heritage Society, (TUHS) a website dedicated to the preservation and maintenance of historical UNIX systems
- A MS Windows program that installs the SIMH emulator and a UNIX/32V image.
- Information about running UNIX/32V in SIMH
