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HP UX

HP-UX 11i
HP-UX Blue logo
Developer Hewlett-Packard Enterprise
Written in C
OS family Unix (System V)
Working state Current
Source model Closed source
Initial release 1982; 35 years ago (1982)
Latest release 11i v3 Update 15 / March 2016; 1 year ago (2016-03)
Marketing target Server
Available in English
Package manager Software Distributor
Platforms PA-RISC, IA-64
Kernel type Monolithic with dynamically loadable modules
Default user interface KDE, GNOME and CDE
License Proprietary
Official website www.hpe.com/info/hpux

HP-UX (from "Hewlett Packard Unix") is Hewlett Packard Enterprise's proprietary implementation of the Unix operating system, based on UNIX System V (initially System III) and first released in 1984. Recent versions support the HP 9000 series of computer systems, based on the PA-RISC instruction set architecture, and HP Integrity systems, based on Intel's Itanium architecture.

Earlier versions of HP-UX supported the HP Integral PC and HP 9000 Series 200, 300, and 400 computer systems based on the Motorola 68000 series of processors, as well as the HP 9000 Series 500 computers based on HP's proprietary FOCUS architecture.

HP-UX was the first Unix to offer access control lists for file access permissions as an alternative to the standard Unix permissions system. HP-UX was also among the first Unix systems to include a built-in logical volume manager. HP has had a long partnership with Veritas Software, and uses VxFS as the primary file system.

It is one of six commercial operating systems that have versions certified to The Open Group's UNIX 03 standard. (The others are macOS, Solaris, Inspur K-UX, Huawei EulerOS and AIX.)


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