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 5855-00-106-1640
NSN 5990-00-857-2930
NSN 6150-00-695-9754
NSN 5915-00-987-7165
NSN 4140-00-905-6570
NSN 4140-01-224-3803
NSN 6320-01-519-0916
NSN 5935-00-268-3774
NSN 6685-01-110-8353
NSN 5975-01-427-3521
NSN 6110-01-027-1172
NSN 5920-01-551-1295