View all newsletters
Receive our newsletter - data, insights and analysis delivered to you
  1. Technology
January 28, 1987

FUJI READY WITH 2Mb 3.5″ HARD SHELL FLOPPIES

By CBR Staff Writer

The Elmsford, New York-based Fuji USA unit of Fuji Photo Film of Japan is offering 3.5 floppy disks that store 1Mb a side, and says that it will have 4Mb and 8Mb disks ready within the next few months. The key to packing such high capacities onto such a small disk is a new coating process called Beridox, which involves sputtering superfine, high-coercivity Barium-Ferrite and Cobalt-Chromium particles about half the size of conventional particles onto polymer surfaces. The particle coatings are about one micron thick, half that of ordinary magnetic coatings. Coercivity is 700 Oersted, compared with 600 Oersted for current high-density disks and the new Fuji disks also have 80 tracks per side, compared with 40 tracks per side for 5.25 floppies. Fuji uses RD binding, where particles are suspended in a coating material to ensure even bonding to the polymer base. Drives to use the new disks are expected this year.

Topics in this article :
Websites in our network
Select and enter your corporate email address Tech Monitor's research, insight and analysis examines the frontiers of digital transformation to help tech leaders navigate the future. Our Changelog newsletter delivers our best work to your inbox every week.
  • CIO
  • CTO
  • CISO
  • CSO
  • CFO
  • CDO
  • CEO
  • Architect Founder
  • MD
  • Director
  • Manager
  • Other
Visit our privacy policy for more information about our services, how New Statesman Media Group may use, process and share your personal data, including information on your rights in respect of your personal data and how you can unsubscribe from future marketing communications. Our services are intended for corporate subscribers and you warrant that the email address submitted is your corporate email address.
THANK YOU