Structural aspects of the system/360 model 85: I general organization

  • Authors:
  • C. J. Conti;D. H. Gibson;S. H. Pitkowsky

  • Affiliations:
  • -;-;-

  • Venue:
  • IBM Systems Journal
  • Year:
  • 1968

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Abstract

A basic design objective for the Model 85 was to add a computer to the SYSTEM/360 line that offers high performance over a wide range of job types. Simulation studies indicate that the Model 85 will provide an average three- to five-fold increase in internal performance with main storage capacities of up to four million bytes. This part of the paper discusses the major elements of the Model 85 within the architectural context of SYSTEM/360, including the addition of a high-speed buffer, called a cache. Also summarized are the simulation studies that led to use of the cache, selection of its parameters, and verification of internal performance of the system.