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 6110-00-008-1766
NSN 6320-01-382-9676
NSN 5999-00-616-3233
NSN 2925-01-243-0328
NSN 6110-00-950-3058
NSN 5990-01-337-4584
NSN 6145-01-082-7854
NSN 2925-00-468-5273
NSN 6105-01-526-5516
NSN 5975-00-141-8513
NSN 5999-00-336-0248
NSN 5975-01-201-5497