Revision as of 16:53, 20 February 2024 edit R'n'B (talk \| contribs) Administrators 420,092 edits m Disambiguating links to TSS (link changed to TSS (operating system)) using DisamAssist. ← Previous edit		Revision as of 17:59, 20 February 2024 edit undo Guy Harris (talk \| contribs) Extended confirmed users 75,977 edits →History: That link isn't useful - TSS (operating system) doesn't give details about UNIX/360, and the parenthetical note links to TSS/370, which redirects to TSS (operating system). Next edit →
Line 69: IBM's own involvement in Unix can be dated to 1979, when it assisted Bell Labs in doing its own Unix port to the 370 (to be used as a [[Software build\|build host]] for the [[5ESS switch]]'s software). In the process, IBM made modifications to the [[TSS/370]] [[hypervisor]] to better support Unix.<ref name="att-s370-unix">{{cite journal \|title=A UNIX System Implementation for System/370 \|first1=W. A. \|last1=Felton \|first2=G. L. \|last2=Miller \|first3=J. M. \|last3=Milner \|journal=AT&T Bell Laboratories Technical Journal \|year=1984 \|volume=63 \|issue=8 \|url=https://www.bell-labs.com/usr/dmr/www/otherports/ibm.pdf \|access-date=September 1, 2015 \|archive-date=June 11, 2015 \|archive-url=https://web.archive.org/web/20150611114653/https://www.bell-labs.com/usr/dmr/www/otherports/ibm.pdf \|url-status=live }}</ref> It took until 1984 for IBM to offer its own Unix on the S/370 platform, VM/IX, which was developed by [[Interactive Systems Corporation]] using Unix System III as its base. VM/IX (and the modified version of VM/370 it required) was not a General Availability product; it was only obtainable as a PRPQ. In 1985, VM/IX was replaced by IBM IX/370, which was a GA product intended by IBM to compete with Amdahl UTS.<ref>{{cite news \|newspaper=Computerworld \|date=February 18, 1985 \|title=Users: new life for VM \|page=11 \|url=https://books.google.com/books?id=iwX8vVdMAckC&pg=PA11 \|first=John \|last=Gallant \|access-date=February 3, 2015 \|archive-date=May 17, 2015 \|archive-url=https://web.archive.org/web/20150517120151/https://books.google.com/books?id=iwX8vVdMAckC&pg=PA11 \|url-status=live }}</ref> IX/370 which was based on AT&T's ~~[[TSS (operating system)\|~~Unix/360]] 6th Edition port (which only ran on [[TSS/370]] as a time-share application), was updated to Unix System 5 and modified by IBM to run as a VM/370 guest OS. The IX/370 operating system offered special facilities for interoperating with [[PC/IX]], Interactive/IBM's version of Unix for [[IBM PC compatible]] hardware, and was licensed at $10,000 per sixteen concurrent users.<ref>{{cite news \|newspaper=Computerworld \|date=February 18, 1985 \|title=Software steals 3090's thunder: VM gets XA version; Unix fully supported \|pages=1, 8 \|url=https://books.google.com/books?id=iwX8vVdMAckC&pg=PA8 \|first=John \|last=Gallant \|access-date=February 3, 2015 \|archive-date=May 16, 2015 \|archive-url=https://web.archive.org/web/20150516190722/https://books.google.com/books?id=iwX8vVdMAckC&pg=PA8 \|url-status=live }}</ref> AIX Version 1, introduced in 1986 for the [[IBM RT PC]] [[workstation]], was based on [[UNIX System V]] Releases 1 and 2. In developing AIX, IBM and [[Interactive Systems Corporation]] (whom IBM contracted) also incorporated source code from 4.2 and 4.3 [[Berkeley Standard Distribution\|BSD]] UNIX.

IBM AIX: Difference between revisions