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 6240-00-126-4551
NSN 5925-01-167-8144
NSN 6620-01-623-7266
NSN 5985-00-536-7643
NSN 5975-00-397-9533
NSN 6130-00-402-6351
NSN 2925-00-909-2596
NSN 5950-01-392-1026
NSN 5915-00-332-0362
NSN 6320-01-409-1388
NSN 5945-01-508-1064
NSN 5975-01-430-9613