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 5950-01-170-8108
NSN 6220-01-228-9583
NSN 6610-00-200-8832
NSN 5999-01-650-6561
NSN 5960-01-284-4118
NSN 5915-01-552-5342
NSN 5915-00-254-3436
NSN 6685-00-903-5003
NSN 7035-00-335-7283
NSN 5999-01-591-5756
NSN 5965-01-160-1017
NSN 5925-01-171-1833