HP Multi-Programming Executive
MPE is a discontinued business-oriented mainframe computer real-time operating system made by Hewlett-Packard. While initially a mini-mainframe, the final high-end systems supported 12 CPUs and over 2000 simultaneous users.Description
It runs the HP 3000 family of computers, which originally used HP custom 16-bit stack architecture CISC CPUs and were later migrated to PA-RISC where the operating system was called MPE XL.
In 1983, the original version of MPE was written in a language called SPL. MPE XL was written primarily in Pascal, with some assembly language and some of the old SPL code.
In 1992, the OS name was changed to MPE/iX to indicate Unix interoperability with the addition of POSIX 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.Commands
Among others, MPE/iX supports the following list of common commands and programs.
