HP-UX
<operating system> The version of
Unix running on
Hewlett-Packard workstations.
HP-UX conforms to
X/Open's Portability Guide Issue 4 (XPG4), Federal Information Processing Specification (FIPS) 151.1,
POSIX 1003.1, POSIX 1003.2,
AT&T's System V Interface Definition 2 (
SVID 2).
HP-UX incorporates selected features from the University of California at Berkeley Software Distribution 4.3 (4.3BSD).
It is known by some as "
HP-SUX".
[Features?]