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 5998-01-107-0504
NSN 6220-01-521-5703
NSN 5996-01-082-8987
NSN 5855-01-537-7059
NSN 5975-01-239-4207
NSN 5945-00-808-9132
NSN 6650-01-157-8806
NSN 5915-00-949-7206
NSN 5920-00-162-8219
NSN 5990-01-123-1216
NSN 5835-01-555-8963
NSN 6110-01-606-7355