Magnetic disc memory

Details Magnetic disc memory Magnetic disc memory

1975-05-15

1977-01-25

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360103, 360104, 360135, G11B 560, G11B 2504, G11B 2120

Patent

active

040054900

ABSTRACT:
A magnetic disc memory characterized by a symmetrical configuration in which an electrical drive motor is located along the axis of symmetry and within the normally unuseable inner diameter of a magnetic disc. The disc is secured to the rotor assembly of the electrical drive motor which rotates around a fixed stator assembly. Additionally, the storage capacity and the reliability of the memory is improved by the use of both sides of the disc, incorporation of multi-track cores to increase the number of data tracks per core, and an improved pre-loading system to properly align the gas-bearing cores with the disc during operation.

REFERENCES:
patent: 2907007 (1959-09-01), Baker et al.
patent: 3864748 (1975-02-01), Herdman et al.

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