Proposal for a 1012bit flexible disk pack memory

Experiments have been performed on a disk type memory system employing stacked flexible disks. The basic experimental module consists of 128 Mylar disks 0.004 in. thick stacked together in an 11/4 in. high pack. Access is achieved by mechanically deforming apart the rotating disks which are of different diameters. Although such memory modules possess a number of mechanical and wear problems, an analysis indicates that such modules could be used to construct a 10¹²bit memory with a read write access time of a second or less. In addition, it appears such a memory would occupy a relatively small volume.