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 5990-01-503-5475
NSN 6105-00-064-7523
NSN 2925-00-113-6146
NSN 5975-00-361-7793
NSN 6240-01-291-1191
NSN 2925-00-642-8854
NSN 5996-01-255-6867
NSN 6220-01-085-4947
NSN 6110-01-459-3601
NSN 5985-01-406-4274
NSN 5945-00-274-2398
NSN 5999-01-206-4657