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 6130-00-312-2261
NSN 5910-01-462-4938
NSN 6610-00-633-4338
NSN 5910-00-979-8354
NSN 5925-01-441-8995
NSN 6685-01-416-6112
NSN 6685-01-068-2127
NSN 5998-01-628-4300
NSN 6130-01-351-7238
NSN 5930-00-127-7741
NSN 5960-01-289-4898
NSN 2925-01-208-6638