University_of_Michigan_Executive_System

University of Michigan Executive System

University of Michigan Executive System

Operating system

This article is about UMES, the computer operating system. For the university, see University of Maryland Eastern Shore.

The University of Michigan Executive System, or UMES, a batch operating system developed at the University of Michigan in 1958, was widely used at many universities. Based on the General Motors Executive System for the IBM 701, UMES was revised to work on the mainframe computers in use at the University of Michigan during this time (IBM 704, 709, and 7090) and to work better for the small student jobs that were expected to be the primary work load at the university.

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UMES was in use at the University of Michigan until 1967, when MTS was phased in to take advantage of the newer virtual memory time-sharing technology that became available on the IBM System/360 Model 67.

Programming languages available

See also

  • University of Michigan Executive System for the IBM 7090 Computer, volumes 1 (General, Utilities, Internal Organization), 2 (Translators), and 3 (Subroutine Libraries), Computing Center, University of Michigan, September 1965, 1050 pp.
  • George Gray (March 1993). "EXEC II". Unisys History Newsletter. 1 (3). Archived from the original on August 9, 2017.
  • The IBM 7094 and CTSS, Tom Van Vleck
  • University of Michigan Executive System (UMES) subseries, Computing Center publications, 1965–1999, Bentley Historical Library, University of Michigan, Ann Arbor, Michigan
  • "A Markovian model of the University of Michigan Executive System", James D. Foey, Communications of the ACM, 1967, No.6
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