backup

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Related to Back-up: computer backup

backup

[′bak‚əp]
(building construction)
That part of a masonry wall behind the exterior facing.
(civil engineering)
Overflow in a drain or piping system, due to stoppage.
(computer science)
Logical or physical facilities to aid the process of restarting a computer system and recovering the information in it following a failure.
The provision of such facilities.
(engineering)
An item under development intended to perform the same general functions that another item also under development performs.
A compressible material used behind a sealant to reduce its depth and to support the sealant against sag or indentation.
(graphic arts)
An image printed on the reverse side of a printed sheet.
The printing of such an image.
(metallurgy)
A support used to balance the upsetting force in the workpieces during flash welding.
(petroleum engineering)
During drilling, the holding of one section of pipe while another is screwed out of it or into it.

backup

1. That part of a masonry wall behind the exterior facing.
2. A compressible material used behind a sealant to reduce its depth and to support the sealant against sag or indentation.
3. Overflow in a drain or piping system, due to stoppage.
4. A condition where waste water flows back into another fixture or compartment or water line (but does not flow back into the potable water system).

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.

backup

(1) A duplicate copy of data or of an entire storage drive on a separate storage medium. "Backup" is the noun; "back up" is the verb. See backup software, backup types, backup storage, copy data, backup and restore, disaster recovery and LAN-free backup.

(2) Additional hardware resources ready to take over if the main system fails. See fault tolerant.
References in periodicals archive ?
If it is at all possible, send the back-up copy you made in Step 8 to an antiviral company for evaluation.
In addition to maintaining network connection during power outages, the APC Back-UPS BGE70 protects devices from potential damage during outages and other power-related events such as voltage spikes, a reduction in input voltage, noise or unstable frequencies.
DRIVE Image 2002 offers a complete approach to comprehensive back-ups.
El equipo Back-UPS RS 1300 ofrece 136 minutos de energia para respaldar informacion y el Back-UPS RS 1500 tiene una independencia de 154 minutos.
1 for next season after Mark Howard quit for Cardiff City and back-ups Allan Ferguson and Darren Hill were freed.
Use the CDs to load info to your MSDs and then as back-ups for the MSDs.
Peter Sotheran, who manages the concerts from his home near Redcar, said: "We make regular back-ups of our files but, without our being aware of it, the most recent back-ups were all corrupted.
American Power Conversion (NASDAQ:APCC) (APC) has introduced the Back-UPS ES 750, a complete broadband power protection solution for home networking equipment.
With the volume of material that Zubick handles, downtime for the material handling-equipment means costly back-ups for the trucks in the yard and for customer orders.
The complete fan power string has been supplied as a whole, complete with motors, 12 pulse inverter drives and soft-start back-ups.