is a very powerful
, easily extensible
system that provides a solid
, mostly stable
base with strong networking
capabilities, upon which it is relatively easy
to construct an OS
of sorts. Windows
' domination of the PC
market probably comes out of the aggressive
policies of the Microsoft management
However, there are a couple of OSes that are not UNIX-based:
AmigaOS and VMS are another two OSes that are pretty modern, but not so recent, and both non-UNIX.
Magenta tells me that BeOS isn't really POSIX compliant. It doesn't have a lot of critical function calls, such as select(). Also notable is that it's not multiuser.