Data storage apparatus for digital data processing system

Details Data storage apparatus for digital data processing system Data storage apparatus for digital data processing system

G - Physics

11

C

352/40.8

G11C 5/02 (2006.01) G11C 11/14 (2006.01)

Patent

CA 1278861

Abstract of the Disclosure A data storage device for use in a digital data processing system that stores digital data in addressable storage locations on a stationary planar magnetic medium. The storage device includes a magnetic head module that, in turn, includes a plurality of individually energizable read/write heads forming an array across one surface of the module, the individual heads corresponding to the addresses. The magnetic medium is placed in juxtaposition with the surface of the module that includes the array. When a head is energized it generates a magnetic field to magnetize a region of the magnetic medium proximate the head thereby to store data on the medium. To read data from the medium, the head is energized to generate a magnetic field in a selected direction. An electrical voltage is generated in the head winding, the amplitude of which indicates the value of the stored data. After the location is read, the data is re-written in the location.

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