computer backup

English Thesaurus

1. (computer science) a copy of a file or directory on a separate storage device (noun.artifact)

hypernym	:	duplicate, duplication,
definition	:	a copy that corresponds to an original exactly (noun.artifact)

domain category	:	computer science, computing,
definition	:	the branch of engineering science that studies (with the aid of computers) computable processes and structures (noun.cognition)

derivation	:	back up,
definition	:	make a copy of (a computer file) especially for storage in another place as a security copy (verb.creation)

derivation	:	back up,
definition	:	make a copy of (a computer file) especially for storage in another place as a security copy (verb.creation)