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 6685-01-136-9834
NSN 5999-01-091-1082
NSN 5945-01-444-4293
NSN 6645-00-240-9762
NSN 6110-01-287-3948
NSN 5990-00-998-6193
NSN 5915-00-055-6067
NSN 5920-00-425-1430
NSN 5925-01-494-6619
NSN 7035-01-512-1826
NSN 6645-01-587-4642
NSN 5999-01-116-3490