High speed ferrite 2 1/2 D memory

Abstract

Main core storage in digital computers has been getting both larger and faster with each generation. In view of this a design was undertaken which would be inherently faster, and inherently less expensive in the large sizes. Other significant inputs to the design approach chosen was that electronics, that is semiconductors, were becoming less expensive; also, to operate at the higher speeds smaller cores must be used. Since it is progressively more difficult to put additional wires through these smaller cores, system approaches using fewer wires through the core were studied.