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 5965-01-391-1703
NSN 6645-01-532-5785
NSN 5895-01-605-2596
NSN 5998-01-509-2370
NSN 5925-00-483-7532
NSN 4140-01-582-0863
NSN 5835-00-794-7500
NSN 5996-00-079-0384
NSN 5855-00-532-0025
NSN 6320-01-652-3806
NSN 5855-00-631-4565
NSN 6645-00-624-5963