Unix
family of computer operating systems that derive from the original AT&T Unix from 1969
NeXTSTEP
operating system from NeXT Computer
Research Unix
The original Unix operating system from Bell Labs, developed by Ken Thompson and Dennis Ritchie
Research Unix
The original Unix operating system from Bell Labs, developed by Ken Thompson and Dennis Ritchie
Banyan VINES
Network operating system (obsoleted)
Solaris
Unix operating system originally developed by Sun Microsystems
MIPS RISC/os
discontinued UNIX operating system developed by MIPS Computer Systems, Inc
AT&T UNIX
The original commercial Unix operating system by AT&T
AT&T UNIX
The original commercial Unix operating system by AT&T
Olivetti X/OS
operating system from the Unix family
Dyson
free Unix operating system
Berkeley Software Distribution
Unix operating system