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 6620-01-651-1315
NSN 7035-00-215-3272
NSN 7035-01-331-5614
NSN 5990-01-272-4091
NSN 6685-01-013-8572
NSN 6145-01-124-0035
NSN 6110-00-181-5634
NSN 5950-00-927-8644
NSN 5990-00-201-1162
NSN 6130-01-258-1134
NSN 5930-00-797-4993
NSN 7035-01-585-5888