A backup is a copy of data that is stored separately from the original data. The backup can be used to restore the original data if the original data is lost or damaged.

There are two types of backups: full backups and incremental backups. A full backup copies all of the data on the original media. An incremental backup copies only the data that has changed since the last backup.

There are several ways to back up data. One way is to use a backup program that runs on the computer. Another way is to use a removable storage device, …