OS/7

OS/7
DeveloperSperry Univac
Working stateDiscontinued
Initial releaseJanuary 1974; 50 years ago (1974-01)
PlatformsUNIVAC 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]

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

  1. ^ Piasta, Frank (November 17, 1971). "Univac 9700 Features Compatibility, Performance". Computerworld. Retrieved Aug 24, 2018.
  2. ^ a b 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.