Xenix Exploration
What's Xenix?
Xenix is a variant of System V Unix made by AT&T Corporation then licensed by Microsoft and then sold off to SCO. However, Xenix featured multiple technical improvements over System V Unix.
It was ported to many different platforms, like the Altos 8600, IBM PC, etc. Although the one I'll mostly be here for is the IBM PC compatible versions.
What Used Xenix?
Apparently, to the mid-to-late 1980s, Xenix was the most common variant of UNIX. Also, in around DOS 2.0 time, they introduced subdirectories -- a feature taken from Xenix. Apparently they had intentions to turn DOS into a sort of 'single-user' Xenix. Oh, also, they used Xenix, to compile the first versions of Windows -- in fact, you could cross-compile from Xenix to DOS. That was included in the Xenix Software Development System. The development system appears to have been bundled with the first version of Xenix for the IBM PC.
Which One?
Which Xenix version do you want to see me explore?
TRS-Xenix v01.03.05 Exploration (contributed by Seal331)