NEXTSTEP and the NeXT workstation was
"intended" to sweep all before it.
Including SunOS, Sun and other proprietary Unix workstations. It
probably deserved to. Imagine if it had succeeded :)
Ugh. It was never a server-grade OS, but it could possibly have been
with multiprocessor support and some tuning of the VM system. But then,
NeXT never made any server-class hardware...there was never any chance
of it competing with, say, Sun of the other-than-workstation variety.
I meant workstations, of course.