Eddycard memory: a semi-permanent storage

  title={Eddycard memory: a semi-permanent storage},
  author={T. Ishidate and Seiichi Yoshizawa and K. Nagamori},
  booktitle={AFIPS '61 (Eastern)},
  • T. Ishidate, Seiichi Yoshizawa, K. Nagamori
  • Published in AFIPS '61 (Eastern) 1961
  • Computer Science
  • A high-speed semi-permanent memory using closed-loop conductors as coupling media is described. Sense wire detects eddy currents in the closed-loop, which are induced by the drive current. Closed-loops on the Eddycard are cut out by a punch to store the information ZERO. Complete loops represent the information ONE. After the discussion of basic fundamental results, 1024 word 45 bit experimental Eddycard memory system is introduced. It works at a read cycle time of 100 millimicroseconds in… CONTINUE READING
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