The evolution of the Sperry Univac 1100 series: a history, analysis, and projection

  • Authors:
  • B. R. Borgerson;M. L. Hanson;P. A. Hartley

  • Affiliations:
  • Sperry Univac, Blue Bell, PA;Sperry Univac, St. Paul, MN;Sperry Univac, St. Paul, MN

  • Venue:
  • Communications of the ACM - Special issue on computer architecture
  • Year:
  • 1978

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Abstract

The 1100 series systems are Sperry Univac's large-scale mainframe computer systems. Beginning with the 1107 in 1962, the 1100 series has progressed through a succession of eight compatible computer models to the latest system, the 1100/80, introduced in 1977. The 1100 series hardware architecture Is based on a 36-bit word, ones complement structure which obtains one operand from storage and one from a high-speed register, or two operands from high-speed registers. The 1100 Operating System is designed to support a symmetrical multiprocessor configuration simultaneously providing multiprogrammed batch, timesharing, and transaction environments.