HP Multi-Programming Executive
| Developer | Hewlett-Packard |
|---|---|
| Written in | System Programming Language, HP Pascal, Assembly language |
| Working state | Discontinued |
| Initial release | 1974 |
| Latest release | 7.5 / August 2002 |
| Platforms | HP 3000 |
| Default user interface | Command-line interface |
| License | Proprietary |
MPE (Multi-Programming Executive) is a discontinued business-oriented mainframe computer real-time operating system developed by Hewlett-Packard for their HP 3000 computers. While the HP 3000s were initially mini-mainframes, the final high-end systems supported 12 CPUs and over 2000 simultaneous users.