IBM Journal of Research and Development
IBM Skip to main content
  Home     Products & services     Support & downloads     My account  

  Select a country  
Journals Home  
  Systems Journal  
Journal of Research
and Development
    Current Issue  
    Recent Issues  
    Papers in Progress  
    Recent publications  
    Author's Guide  
  Contact Us  
  Related links:  
     IBM Research  

IBM Journal of Research and Development  
Volume 25, Number 5, Page 663 (1981)
25th Anniversary Issue
  Full article: arrowPDF   arrowCopyright info


The Evolution of Magnetic Storage

by L. D. Stevens
Since delivery of the first vacuum-column magnetic-tape transport in 1953 and the first movable-head disk drive in 1957, tape and disk devices in many configurations have been the principal means for storage of the large volumes of data required by data processing systems. Magnetic drums and other device geometries have also been important system components, but to a lesser extent. Over the past twenty-five years significant developments have been made that increase the capacity, reduce the cost, and improve the performance and reliability of these devices. With each improved device the range and nature of the applications undertaken have expanded and, in turn, led to a need for further device improvement. This paper gives a general review and historical perspective of magnetic storage development within IBM and is an introduction to the subsequent papers on disk, diskette, and tape technology and on disk manufacturing.
Related Subjects: Magnetic head-disk interaction; Storage (computer) devices and systems