HP Multi-Programming Executive
Operating system
MPE 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... Wikipedia
Programming languages: Assembly language and Pascal
Developer: HP
Initial release: 1974; 50 years ago
Latest release: 7.5 / August 2002; 21 years ago