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backup
(redirected from computer backup)

    Also found in: Dictionary/thesaurus, Wikipedia 0.31 sec.

Additional resources or duplicate copies of data on different storage media for emergency purposes. See backup types, LAN free backup and back up.

(operating system)backup - ("back up" when used as a verb) A spare copy of a file, file system, or other resource for use in the event of failure or loss of the original.

The term commonly refers to a copy of the files on a computer's disks, made periodically and kept on magnetic tape or other removable medium (also called a "dump").

This essential precaution is neglected by most new computer users until the first time they experience a disk crash or accidentally delete the only copy of the file they have been working on for the last six months. Ideally the backup copies should be kept at a different site or in a fire safe since, though your hardware may be insured against fire, the data on it is almost certainly neither insured nor easily replaced.

See also backup software, differential backup, incremental backup, full backup. Compare archive, source code management.
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In April, Time Warner said it lost computer backup tapes containing sensitive data, including the names and Social Security numbers of 600,000 current and former employees, their dependents and beneficiaries, and individuals who have provided services for the company.
Data breaches: is anyone safe? by Information Management Journal
THE news that Time Warner has lost computer backup tapes containing personal data on some 600,000 past and present employees and their families comes as one more example - as if we needed one - that no one's identity is safe these days.
EDITORIAL IDENTITY THEFT by Daily News (Los Angeles, CA)
recovery of computer backup files, transfer of data to the computer backup site, and operation of the backup site itself.
Disaster recovery planning for information technology functions. ... by Lewis, Steven / Nursing Homes
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