First of all, did MS Xenix run on PC hardware?
Yes.
Secondly, was there ever a Windows NT 1.0 and 2.0? How
did they compare
to a cheap version of UNIX?
No, the first Windows NT was V3.1 which matched the current shipping version
of Windows at that time. IMHO it was not even close to any reasonable version
of Unix but was/is much easier to configure.
Regards,
Bob