HP-UX
HP-UX
(operating system)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 VInterface Definition 2 (SVID 2). HP-UX incorporatesselected features from the University of California atBerkeley Software Distribution 4.3 (4.3BSD).
It is known by some as "HP-SUX".