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 5905-01-530-0467
NSN 5945-01-593-6251
NSN 5910-01-467-2404
NSN 6105-00-067-7517
NSN 5835-00-368-4182
NSN 6145-01-372-2035
NSN 5855-01-287-6391
NSN 6620-01-218-6203
NSN 5998-01-416-3457
NSN 6240-01-367-3656
NSN 5905-00-116-6534
NSN 5920-01-214-0451