MPE (Multi-Programming Executive) is a discontinued business-orientedmainframe computerreal-timeoperating system developed byHewlett-Packard for theirHP 3000 computers. While the HP 3000s were initially mini-mainframes, the final high-end systems supported 12CPUs and over 2000 simultaneous users.

It runs on the HP 3000 family of computers, which originally used HP custom16-bitstack architectureCISCCPUs and were later migrated toPA-RISC where the operating system was calledMPE XL.

In 1983, the original version of MPE was written in a language called SPL (System Programming Language). MPE XL was written primarily inPascal, with someassembly language and some of the old SPL code.

In 1992, the OS name was changed toMPE/iX to indicateUnix interoperability with the addition ofPOSIX compatibility. The discontinuance of the product line was announced in late 2001, with support from HP terminating at the end of 2010. A number of 3rd party companies still support both the hardware and software.

In 2002 HP released the last version MPE/iX 7.5.^[1]

Among others, MPE/iX supports the following list of commoncommands and programs.^[2]

• Allegro Consultants, Inc. Free HP 3000 Software, MPE Software Support
• Beechglen Development Inc.Archived 1996-12-27 at theWayback Machine MPE Software Support
• HP MPE/iX homepage
• HP MPE/iX Command reference
• openMPEArchived 2018-08-23 at theWayback Machine Advocates of continued MPE and IMAGE source code access beyond 2010

Thisoperating-system-related article is astub. You can help Wikipedia byexpanding it.

• v
• t
• e

• Discontinued operating systems
• HP software
• Proprietary operating systems
• 1974 software
• Operating system stubs

• All articles with dead external links
• Articles with dead external links from July 2024
• Articles with permanently dead external links
• Articles with short description
• Short description is different from Wikidata
• Short description matches Wikidata
• Webarchive template wayback links
• All stub articles