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backup

 - 3 dictionary results
IDrive - Online Backup
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Secure Your Data Backup
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UPS Battery Backup
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back⋅up

  [bak-uhp]
Use backup in a Sentence
–noun
1. a person or thing that supports or reinforces another.
2. a musician or singer or group of musicians or singers accompanying a soloist: a singer with a three-man backup that plays cello, bass, and guitar.
3. an overflow or accumulation due to stoppage, malfunctioning, etc.: a sewage backup; a backup of cars at the tollbooth.
4. a person, plan, device, etc., kept in reserve to serve as a substitute, if needed.
5. Computers.
a. a copy or duplicate version, esp. of a file, program, or entire computer system, retained for use in the event that the original is in some way rendered unusable.
b. a procedure to follow in such an event.
6. Bowling. a ball that curves in a direction corresponding to the bowling hand of the bowler.
–adjective
7. (of a person, plan, device, etc.) held in reserve as a substitute if needed: a backup driver; a backup generator.
8. performing a secondary or supporting function: A drummer and guitarist are the singer's backup musicians.
Origin:
1775–85, Americanism; n. use of v. phrase back up
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To backup
IDrive - Online Backup
Real Time Backup for your critical data at only $4.95/Month!
www.idrive.com
Secure Your Data Backup
Encrypt your data with no impact to backup performance >
www.Quantum.com
back·up   (bāk'ŭp')   
n.  

    1. A reserve or substitute.

    2. Computer Science A copy of a program or file that is stored separately from the original.

    3. Support or backing.

    4. Music A background accompaniment, as for a performer.

    1. Support or backing.

    2. Music A background accompaniment, as for a performer.

  3. An overflow or accumulation caused by clogging or by a stoppage: a backup in the sink; a backup of traffic at the drawbridge.

adj.  Extra; standby: a backup pilot.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Computing Dictionary

backup operating system
("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.
(2004-03-16)

The Free On-line Dictionary of Computing, © 1993-2007 Denis Howe
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Search another word or see backup on Thesaurus | Reference
UPS Battery Backup
Looking for Backups? Power Protection for all equipment.
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Backup & Restore Software
New Acronis True Image Home 2010 Timeless backup and recovery tool.
www.Acronis.com/True_Image
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