A functional description of macromodules

  • Authors:

  • Severo M. Ornstein;Mishell J. Stucki;Wesley A. Clark

  • Affiliations:

  • Washington University, St. Louis, Missouri;Washington University, St. Louis, Missouri;Washington University, St. Louis, Missouri

  • Venue:
  • AFIPS '67 (Spring) Proceedings of the April 18-20, 1967, spring joint computer conference
  • Year:
  • 1967

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Abstract

This paper describes a set of macromodular building blocks such as registers, adders, memories, control devices, etc., from which it is possible for the electronically-naive to construct arbitrarily large and complex computers that work. Machines are assembled by plugging the modules into cells of a special frame which provides for communication between adjacent cells. Explicit data pathways and control structures are then made by plugging in standardized cables. All pieces of a system are therefore recoverable and systems can be reconfigured easily. Data modules process twelve-bit word-segments; greater word lengths are obtained by interconnecting modules. Memory modules hold 4096 twelve-bit segments and can also be interconnected to form larger arrays. Particular attention is given to the problem of designing control structures. The control signals for a given process are routed along the cables of a control network whose topology is isomorphic to the flow diagram representing the process. The step from conception to realization can therefore be made directly.