OS/7

Last updated
OS/7
Developer Sperry Univac
Working stateDiscontinued
Initial releaseJanuary 1974;45 years ago (1974-01)
Platforms UNIVAC Series 90/60 and 90/70

OS/7 is a discontinued operating system from Sperry Univac for its 90/60 and 90/70 computer systems. The system was first announced in November 1971 for Univac's 9700 system and was originally scheduled for delivery in March 1973. [1] [2] However, the delivery slipped by nearly a year, which impacted the 9700 marketing effort. It was first demonstrated by Univac on the new 90/60 system in October 1973. The official release was then planned for January 1974. [2] OS/7 was abruptly discontinued in 1975 in favor of VS/9, Univac's name for RCA's VMOS operating system. [3] [4]

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UNIVAC Series 90

The Univac Series 90 was a family of mainframe class computer systems from UNIVAC first introduced in 1973. The low end family members included the 90/25, 90/30 and 90/40 that ran the OS/3 operating system. The intermediate members of the family were the 90/60 and 90/70, while the 90/80 was the high end system. The 90/60 through 90/80 systems all ran the Univac’s virtual memory operating system, VS/9.

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"OS/7 is a multi-tasking, multi-programming system that utilizes a roll-in, roll-out capability to keep the CPU optimally busy." [5]

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References

  1. ↑ Piasta, Frank (November 17, 1971). "Univac 9700 Features Compatibility, Performance". Computerworld. Retrieved Aug 24, 2018.
  2. 1 2 UNIVAC 90/60 and 90/70
  3. ↑ "UNIVAC 90/60,90/70, and 90/80" (PDF). Datapro. September 1976. Retrieved Aug 24, 2018.
  4. ↑ "Univac 9000, Series 70 Sites Promised Help Moving to VS/9". Computerworld. November 26, 1975. Retrieved Aug 24, 2018.
  5. ↑ Leavitt, Don (October 31, 1973). "OS/7 Memory System Gives Virtual-Like Use". Computerworld. Retrieved Aug 24, 2018.
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