It is not like pc unixes ran blazingly fast or were terribly useful back in the days of 486. Solaris and sunos/386 were probably least stable, followed by next

It is not like pc unixes ran blazingly fast or were terribly useful back in the days of 486. Solaris and sunos/386 were probably least stable, followed by next(not x86) and netbsd. They may have seen fine to play around with but would crash horribly under any heavy use like cad or mathematica