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 5855-01-400-1590
NSN 6135-01-431-6801
NSN 5960-01-023-2815
NSN 6240-01-564-6525
NSN 6320-01-523-4954
NSN 6650-00-999-8902
NSN 5905-01-199-7079
NSN 5945-00-985-8190
NSN 5925-00-570-4771
NSN 6685-00-092-7953
NSN 6645-01-361-2829
NSN 5985-01-613-8472