Description of Resource: 
VPS/VM (Virtual Processing System/Virtual Machine) was an operating system that ran on IBM System/370 - System/3090 computers at Boston University in general use from 1977 to around 1990, and in limited use until at least 1993. During the 1980s VPS/VM was the main operating system of Boston University and often ran up to 250 users at a time when rival VM/CMS computing systems could only run 120 or so users.
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United States
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No
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Public
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Website only