2200 UNIX: see how it evolved from MIT CTSS UC Berkeley CAL-TSS, on CDC 6400. XDS UTS → CP-V → Honeywell CP-6 See also Cloud computing The Heralds of Resource Sharing, a 1972 film. History of CP/CMS, IBM's virtual machine operating system (CP) that supported time-sharing (CMS). IBM M44/44X, an experimental computer system based on an IBM 7044 used to simulate multiple virtual machines. IBM System/360 Model 67, the only IBM S/360 series mainframe to support virtual memory. Multiseat configuration, multiple users on a single personal computer. Project MAC, a DARPA funded project at MIT famous for groundbreaking research in operating systems, artificial intelligence, and the theory of computation. TELCOMP, an interactive, conversational programming language based on JOSS, developed by BBN in 1964. Timeline of operating systems VAX (Virtual Address eXtension), a computer architecture and family of computers developed by DEC. Utility computing Virtual memory Time-sharing system evolution References Further reading Nelson, Theodor (1974). Computer Lib: You Can and Must Understand Computers Now; Dream Machines: "New Freedoms Through Computer Screens— A Minority Report". Self-published. . pp. 56–57. : "The author relates a short history of time-sharing, the initial time-sharing experiments, the modifications of existing computers and those designed specifically for time-sharing, project MAC, significant features of the system, services, languages, programs, scope displays and light pens, and intercommunication. External links "Time Sharing Supervisor Programs", notes comparing the supervisor programs of CP-67, TSS/360, the Michigan Terminal System (MTS), and Multics by Michael T. Alexander, Advanced Topics in Systems Programming (1970, revised 1971), University of Michigan Engineering Summer Conference. "The Computer Utility As A Marketplace For Computer Services", Robert Frankston's MIT Master's Thesis, 1973. "40 years of Multics, 1969-2009", an interview with Professor Fernando J. Corbató on the history of Multics and origins of time-sharing, 2009. "Mainframe Computers: The Virtues of Sharing", Revolution: The First 2000 Years of Computing, Computer History Museum Exhibition, January 2011. "Mainframe Computers: Timesharing as a Business", Revolution: The First 2000 Years of Computing, Computer History Museum Exhibition, January 2011. Operating system technology Computer systems