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 5835-01-604-6337
NSN 6130-01-069-8131
NSN 5920-01-242-8064
NSN 5998-01-044-7203
NSN 5999-00-804-4488
NSN 6110-00-705-1368
NSN 5915-01-090-6419
NSN 6610-00-520-6193
NSN 6650-01-619-8373
NSN 5999-01-051-9807
NSN 5990-01-122-9149
NSN 5935-01-631-3623