Off-line storage
Term used to describe any storage that is removable and cannot be accessed by the computer once removed. A good example of off-line storage is a floppy disk. Off-line storage allows a user to store information that will not be affected by computer viruses or hardware failure.
Although off-line storage could be considered secondary storage, we've separated these into their own category because this media can be easily removed from the computer and stored elsewhere.
Also see: Backup, CD definitions, Floppy disk drive definitions, Primary storage, Secondary storage