Computers: Memories: Smaller, faster, and cheaper: A review of magnetic-bubble, electron-beam-accessed, disk- and tape-file memories; MOS RAMs and CCDs excel

The past decade has witnessed dramatic advances in memory and storage technology — primarily as a result of the tremendous progress in semiconductor technology, paced by planar processing and LSI. Great strides have also been made in magnetic recording (disk and tape storage), as well as in magnetic bubbles and beam-addressed storage. The mini- and microcomputer revolution has led to a major broadening of the range and requirements of applications, and the opening of whole new market areas — flexible disks, tape cartridges, cassette-storage elements, ROMs, PROMs, and EPROMs.