What does backup mean?

Backup is the operation of copying data in electronic computer storage devices to large-capacity storage devices such as tapes to cope with possible unexpected situations such as loss or damage of files and data. To put it simply: make a copy of the file and save the copy.

Backup can be divided into system backup and data backup.

1. System backup: refers to the loss of system files of the user's operating system due to disk damage or damage, computer viruses or human error deletion, etc., resulting in the computer operating system not being able to boot normally, so system backup is used , the operating system is stored in advance for backup support after a failure.

2. Data backup: refers to the user storing data including files, databases, applications, etc. for use in data recovery.

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