non-volatile storage

Computing Dictionary

non-volatile storage definition

storage
(NVS, persistent storage, memory) A term describing a storage device whose contents are preserved when its power is off. Storage using magnetic media (e.g. magnetic disks, magnetic tape or bubble memory) is normally non-volatile by nature whereas semiconductor memories (static RAM and especially dynamic RAM) are normally volatile but can be made into non-volatile storage by having a (rechargable) battery permanently connected.
Dynamic RAM is particularly volatile since it looses its data, even if the power is still on, unless it is refreshed. An acoustic delay line is a (very old) example of a volatile storage device.
Other examples of non-volatile storage are EEPROM, CD-ROM, paper tape and punched cards.
(2000-05-22)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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WordNet
non-volatile storage

noun
computer storage that is not lost when the power is turned off [ant: volatile storage
WordNet® 3.0, © 2006 by Princeton University.
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