[ Thanks to Steven J.
Vaughan-Nichols for this link. ]
“Twelve years ago, I oversaw a PC Magazine feature on Unix on
Intel. My team and I reviewed at Unixes from Consensys, Dell,
Interactive, SCO, Univel, Sun, and NeXT.
“We also looked at, but didn’t review, Unixes from UHC,
Microport and other companies most of you have never heard of.
“Today, most of those companies are dead. Only two of them–Sun
and SCO–are still in the Unix business…”