First of all we must know about backup,In information technology, a backup or the process of backing up is making copies of data which may be used to restore the original after a data loss event.
Both individuals and businesses need to plan a data backup strategy to protect information such as business contacts, emails, text documents, presentations, contracts, accounts and other valuable information needed in performing business using their computers.
Unfortunately, saving up your files in your personal computer does not guarantee that all information will be saved. Backing up your data can prevent data loss when,Files and folders from your computer are deleted by failure or accident,Data is destroyed from hard disk error or virus infection,and Your computer is physically destroyed from natural disaster, fire or someone steals your computer.if this kind of problems occur to you backup is the best way to protect your important files,that's why we need backup.
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