Backup is an English word that in the field of technology and information, is a backup or backup process. Backup refers to the copying and archiving of computer data so that it can be used to restore the original information after eventual data loss. The verbal form is backup in two words, while the name is backup.

Backups have two different purposes, the first purpose is data recovery after data loss due to data deletion or corruption, data loss can be a common experience of computer users. A 2008 survey found that 66% of respondents had lost files on their home computer.

The second purpose of backups is to recover data from a previous time, according to a user-defined data retention policy, which is usually configured in a backup application as required. long copies of data, although backups are popularly a simple form of disaster recovery and should be part of a disaster recovery plan on their own.

One of the reasons for this is that not all backup systems or backup applications are capable of rebuilding a computer system or other complex configurations, such as a cluster of computers, which are active directory servers or a backup server. database, by restoring only the data from a backup.