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IBM and SCO Xenix
Thanks to a friend and former co-worker, I was able to add a small collection of early Xenix distributions to the PCjs archives recently:
- IBM PC XENIX 1.0
- IBM PC XENIX 2.0
- SCO Xenix 286 v2.2.1e
- SCO Xenix 286 v2.2.3b
- SCO Xenix 286 v2.3.2d
- SCO Xenix 386 v2.2.3b
- SCO Xenix 386 v2.3.2f
- SCO Xenix 386 v2.3.4h
Notably, SCO Xenix 386 v2.2.3b is an original copy of what may be the oldest surviving 386-based PC operating system.
Previously, that honor went to (a reconstructed copy of) SCO Xenix 386 v2.2.3c, as explained in this series of OS/2 Museum posts:
- The XENIX 386 2.2.3 Mystery (January 3, 2013)
- The XENIX 2.2.3 Mystery, Continued (January 18, 2013)
- Oldest Surviving 386 PC OS? (March 9, 2017)
- What a Coincidence (March 11, 2017)
- Tales From the Xenix Crypt (March 13, 2017)
Also see this series of SoylentNews posts:
- Restoring Xenix 386 2.2.3c (Part 1)
- Xenix 2.2.3c Restoration: No Tools, No Problem (Part 2)
- Xenix 2.2.3c Restoration: Damage Mapping (Part 3)
- Xenix 2.2.3c Restoration: Xrossing The X (Part 4)
There were older releases of SCO Xenix 386 (2.2.1 and 2.2.2), and there may also be older non-SCO releases out there, but until they surface, this is all we have.
Jeff Parsons
Apr 2, 2018