Double sided/double density; 98 tpi; also known as quad density; 1 megabyte unformatted capacity; write protect; hub ring.
A round flat item which is used as a storage media, it is rotated in order to read or write data on one or both sides. The item may have a magnetic coating and be stored in a paper/plastic envelope, or it may be designed as an optical storage media with pits on a reflecting surface that are served by means of an optical device or a laser beam. For preprogrammed disk, flexible, see disk program, automatic data processing.
NSN 5996-01-243-4072
NSN 4140-00-949-2438
NSN 6645-00-116-1409
NSN 4140-00-955-9019
NSN 2925-01-105-7850
NSN 6150-00-003-9733
NSN 5915-01-602-8385
NSN 6685-01-042-4245
NSN 6130-00-216-7376
NSN 5925-01-092-9694
NSN 6150-01-426-8986
NSN 5965-00-015-3660