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The purpose of disk storage is to
- Save data and programs "permanently".
- Allows for direct (random) and sequential access of the data and programs.
- Enable high speed access of files (relative to tape storage).
Uses for disk storage include;
- Holding data files such as Word processing documents, graphics, video, sound, database
etc.
- Holding program files such as applications like word-processing, spreadsheet, database,
accounting, etc.
- Removable disks can be used to transport files and backup files.
- Disks may be used as "Virtual storage" supplementing RAM (internal storage).
(Eg. OS/2 or Windows)
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