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AUTONOMOUS MULTIPLE-PATH INPUT/OUTPUT CONTROL SYSTEM

  • US 3,675,209 A
  • Filed: 02/06/1970
  • Issued: 07/04/1972
  • Est. Priority Date: 02/06/1970
  • Status: Expired due to Term
First Claim
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1. A multiple channel input/output control system for use in a data processing system having a system memory, a plurality of controllable input/output devices connected to a peripheral exchange for at least one class of data throughput, and system interconnection means, said control system comprising:

  • data transfer means having a plurality of input/output channels connected to each peripheral exchange, each of which can be selectively coupled through the associated exchange to any of the associated input/output devices, program translating means comprising means for constructing information transfer descriptors for selected channels from input/output program elements for individual devices and means for designating which input/output channel will be assigned to each input/output transfer depending upon channel availability at transfer initiate time, data service means coupled To the translating means and to the data transfer means for effecting the input/output information transfers described by the descriptors constructed by the translating means, and memory interface means coupled to the translating means and to the data service means and having terminals connectable to the system memory for the exchange of input/output program elements and input/output data with it.

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