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 6145-01-043-7007
NSN 6240-00-555-6347
NSN 6105-01-625-6428
NSN 6610-00-155-1334
NSN 6135-01-264-1311
NSN 6240-01-025-4495
NSN 6110-00-394-7187
NSN 2925-01-518-3453
NSN 7035-00-238-3662
NSN 6130-01-052-2007
NSN 5950-01-203-0093
NSN 6135-00-725-9369