Plated-Wire Memory State-of-the-Art Study (1972)
Technical rept. 1 Oct-30 Nov 1972
AIR FORCE WEAPONS LAB KIRTLAND AFB NM
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A wire plated with a magnetic surface can be used as a computer memory element by alternating the polarity of the magnetic field. While the wire in different enclosure configurations can hold its field in either a longitudinal or a radial direction, the radially oriented field currently is found to have many advantages with respect to switching speed, radiation hardness, and associated peripheral equipment. The construction of the wire presents many parameter balancing problems and needs very tight environmental controls for practical production. These problems have not yet been eliminated, keeping the bit cost in these memories high. The performance, however, of the radially oriented type compared to ferrite cores and semiconductor memories augments this high cost. A recently developed 2-mil wire size element eliminates some of the problems found in the previously standard 5-mil wire systems.
- Computer Hardware