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 5920-01-474-6004
NSN 6685-01-044-8103
NSN 6685-01-069-0088
NSN 5925-01-595-4319
NSN 6320-01-549-3153
NSN 6240-01-054-7185
NSN 6135-01-339-8064
NSN 5920-01-565-0662
NSN 6150-00-045-2986
NSN 5930-01-521-4402
NSN 6150-00-857-6896
NSN 5835-01-568-7796