microsofts attempt im unix business
"In the late 1970's Microsoft licensed UNIX source code from AT&T which at the time was not licensing the name UNIX. Therefore Microsoft created the name Xenix. Microsoft did not sell Xenix to end-users but instead licensed the software to software OEMs such as Intel, Tandy, Altos and SCO who then provided a finished version of their own Xenix to the end-users or other customers."
http://www.computerhope.c…