CP/CMS

CP/CMS (Control Program/Cambridge Monitor System) is a discontinued a time-sharing operating system of the late 60s and early 70s, known for its excellent performance and advanced features. It had three distinct versions: Each implementation was a substantial redesign of its predecessor and an evolutionary step forward. CP-67/CMS was the first widely available virtual machine architecture. IBM pioneered this idea with its research systems M44/44X (which used partial virtualization) and CP-40 (which used full virtualization).

CP/CMS

CP/CMS (Control Program/Cambridge Monitor System) is a discontinued a time-sharing operating system of the late 60s and early 70s, known for its excellent performance and advanced features. It had three distinct versions: Each implementation was a substantial redesign of its predecessor and an evolutionary step forward. CP-67/CMS was the first widely available virtual machine architecture. IBM pioneered this idea with its research systems M44/44X (which used partial virtualization) and CP-40 (which used full virtualization).