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The system was apparently called System III because it was considered the outside release of UNIX/TS 3.0.1 and CB UNIX 3 which were internally supported Bell Labs Unices; its manual refers to it as
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and there were no Unix versions called System I or System II. There was no official release of UNIX/TS 4.0 (which would have been
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Whatever happened to System IV is one of the great unsolved mysteries of computer science.
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AT&T announced System III in late 1981, and it was first released outside of
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by outside organizations. However, it did not include notable additions made in
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Dolotta, T. A.; Olsson, S. B.; Petruccelli, A. G., eds. (June 1980).
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in 1982. UNIX System III was a mix of various AT&T Unix systems:
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416:(2nd ed.). Upper Saddle River, NJ: Prentice Hall. p.
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Third-party variants of System III include (early versions of)
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459:. Vol. 25, no. 2. pp. 72–73.
257:. It also combined various improvements to
245:System III introduced new features such as
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238:) either, so System III was succeeded by
366:. Vol. 8, no. 10. p. 132
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181:) is a discontinued version of the
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385:Dale Dejager (January 16, 1984).
253:system call and command, and the
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43:UNIX System III on SIMH (PDP-11)
37:
1314:indicate discontinued systems.
328:UNIX User's Manual, Release 3.0
1361:Discontinued operating systems
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378:
356:Fiedler, Ryan (October 1983).
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1:
408:Tanenbaum, Andrew S. (2001).
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189:'s Unix Support Group (USG).
185:operating system released by
7:
1299:Windows Subsystem for Linux
468:"UNIX System III on PDP-11"
216:. System III supported the
107:; 44 years ago
57:'s Unix Support Group (USG)
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269:(csh) and screen editing.
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1293:Windows Services for UNIX
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16:Discontinued UNIX variant
710:Unix System Laboratories
480:"UNIX System III on VAX"
412:Modern Operating Systems
341:: CS1 maint: location (
242:, based on UNIX/TS 5.0.
19:Not to be confused with
463:System III source code
453:"20 Years Ago in UNIX"
157:Command-line interface
1287:UserLAnd Technologies
1282:UNIX System Services
781:compatibility layers
1009:Other distributions
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585:MERT/DMERT/UNIX-RT
486:on April 11, 2019.
474:on April 11, 2019.
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777:operating systems
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624:Stephen R. Bourne
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482:. Archived from
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470:. Archived from
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451:(April 2000).
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442:External links
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387:"UNIX History"
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792:Architecture
689:Ken Thompson
600:
484:the original
472:the original
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368:. Retrieved
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351:
327:
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271:
265:such as the
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178:
174:
173:
163:Succeeded by
121:Available in
92:Source model
87:Discontinued
25:
1255:MKS Toolkit
1066:OpenSolaris
674:Joe Ossanna
659:John Mashey
370:January 30,
247:named pipes
227:computers.
1350:Categories
1276:PWS/VSE-AF
1173:SerenityOS
1080:Tru64 UNIX
1055:OpenServer
807:Philosophy
797:Filesystem
649:David Korn
594:Commercial
312:References
63:Written in
1111:Domain/OS
827:Operating
774:Unix-like
698:Companies
654:Mike Lesk
575:(c. 1975)
528:Bell Labs
391:Newsgroup
337:cite book
255:run queue
236:System IV
194:Bell Labs
132:Platforms
74:OS family
50:Developer
1322:Category
1269:P.I.P.S.
1105:Coherent
1087:UnixWare
1021:System V
974:ChromeOS
929:NeXTSTEP
914:bridgeOS
812:Security
728:Category
679:Rob Pike
634:Tom Duff
579:PWB/UNIX
566:Internal
556:UNIX/32V
536:Research
395:net.unix
240:System V
214:UNIX/32V
202:PWB/UNIX
187:AT&T
179:System 3
55:AT&T
1334:Commons
1312:Italics
1241:MachTen
1234:Interix
1214:Darling
1185:more...
1072:Illumos
1060:Solaris
994:Red Hat
964:Android
909:watchOS
894:audioOS
867:OpenBSD
857:FreeBSD
829:systems
802:History
573:CB UNIX
393::
267:C shell
210:UNIX/RT
206:CB UNIX
150:Default
126:English
110: (
1220:Eunice
1209:Cygwin
1201:layers
1128:LynxOS
1004:Ubuntu
989:Gentoo
984:Fedora
979:Debian
943:Ultrix
899:iPadOS
879:Darwin
862:NetBSD
851:386BSD
617:People
609:(1983)
603:(1982)
581:(1977)
558:(1979)
552:(1979)
546:(1975)
424:
249:, the
221:PDP-11
139:PDP-11
1179:Xenix
1146:OSF/1
1133:Minix
1097:Other
1043:HP-UX
955:Linux
936:SunOS
922:DYNIX
884:macOS
817:Shell
457:LOGIN
306:Xenix
302:Venix
298:SINIX
290:PC-UX
286:PC/IX
274:HP-UX
251:uname
208:3.0,
204:2.0,
1262:PASE
1121:Hurd
1049:IRIX
1032:A/UX
999:SUSE
969:Arch
904:tvOS
779:and
772:and
770:Unix
524:Unix
422:ISBN
372:2015
363:BYTE
343:link
304:and
284:and
282:IS/3
278:IRIX
223:and
212:and
183:Unix
177:(or
141:and
112:1980
105:1980
78:Unix
1227:GNV
1152:QNX
1139:MOS
1116:GNU
1038:AIX
889:iOS
840:BSD
526:by
418:675
294:PNX
263:BSD
225:VAX
218:DEC
143:VAX
136:DEC
1352::
455:.
430:.
420:.
389:.
360:.
339:}}
335:{{
308:.
300:,
296:,
292:,
288:,
280:,
276:,
200:,
762:e
755:t
748:v
516:e
509:t
502:v
397:.
374:.
345:)
114:)
68:C
23:.
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