Backup

In computing technology, backup refers to the process of making a copy of or a duplicate of computer data periodically and archiving it for future use. Instances of future use can be in the event of data loss, corrupt data, deleted data or disaster recovery. Achieving is usually done in data storage devices.

- Refers to the copying and archiving or computer data. Backing up is most useful to restore original data in case it is lost, or if it becomes corrupt.

- Ideally, backups should be done to three locations: onsite, online, and (a secured) off site location. The online and off0site backups are especially important in case the on-site backup is lost (fire, flood, etc.) or stolen.

- Backups can be made to physical media - CDs/DVDs/Hard Drives/Tapes, or online to the “cloud.”

- Several services and softwares exist to help users backup their data.