(computer science) Property of a computer storage medium that holds twice as much data per unit of storage space as the standard; applied particularly to floppy disks.
| Sci-Tech Dictionary: double density |
(computer science) Property of a computer storage medium that holds twice as much data per unit of storage space as the standard; applied particularly to floppy disks.
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| Computer Desktop Encyclopedia: double density |
Twice the capacity of the prior format. Yesterday's double density can be today's low density (see
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| Business Dictionary: Double Density |
Though originally a designation of the Format of a Floppy Disk that put twice as many Bits into a given area as the single-density format, double density is now the lowest density commonly found; for most IBM-compatible computers, double density means 360K on a 5.25-inch disk and 720K on a 3.5-inch disk. See also High Density.
| Wikipedia: Double density |
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Double density, often shortened DD, is a capacity designation on magnetic storage, usually floppy disks. It describes the use of an encoding (or modulation) of information, which can encode on average twice as many bits per time unit compared to single density. This is achieved by using MFM instead of FM.
Floppy disk drives have been using this method since 1978 with the introduction of the 360 KiB (MS-DOS FAT size) drives.
The early hard disks also used this encoding, but was replaced by the more efficient RLL method.
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| Translations: Double-density |
Dansk (Danish)
adj. - dobbeltkapacitets-, double density-, med dobbelt lagringstæthed
idioms:
Français (French)
adj. - (Comput) double densité
idioms:
Deutsch (German)
adj. - (Comp.) mit doppelter Dichte
idioms:
Ελληνική (Greek)
adj. - (για δισκέτα Η/Υ) διπλής πυκνότητας εγγραφής
idioms:
Español (Spanish)
adj. - doble densidad
idioms:
Svenska (Swedish)
adj. - dubbeltät
中文(简体)(Chinese (Simplified))
双密度的
idioms:
中文(繁體)(Chinese (Traditional))
adj. - 雙密度的
idioms:
עברית (Hebrew)
adj. - בעל תכולה כפולה לעומת דיסקים ישנים יותר באותו גודל (דיסק מחשב)
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| high-density drive (computer science) | |
| low density (technology) | |
| high-density disk (computer science) |
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