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 6645-01-492-5304
NSN 5910-01-357-6484
NSN 6130-01-571-5997
NSN 5835-01-281-7281
NSN 6130-00-244-1406
NSN 5985-00-941-1794
NSN 6320-01-377-0033
NSN 6220-00-124-8130
NSN 6105-01-199-1796
NSN 5920-00-341-6340
NSN 5985-00-837-7728
NSN 6320-01-631-7828