What Is a System Backup?
System backups typically are performed by a systems administrator as opposed to a regular computer user. They are a hedge against corrupted files and security attacks but are never a casual undertaking.
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Definition
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A system backup is a copy of the operating system used in case of problems with the current software being run. Examples of operating systems include Linux and Windows Vista.
Problems
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Problems in your operating system may be caused by viruses, physical damage or hackers. Hard drives do wear out, and the possibility of user error or malice cannot be ruled out.
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Methods
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The system backup can be performed with a disk supplied with the operating system or by manually copying the hard disk to either a fresh disk or another partition. Hard disks typically are divided into partitions, each serving different purposes.
Scope
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A system backup is always a major undertaking. Although the professional versions of Windows do have built-in facilities for system backup, it is generally easier to back up your files on a CD or external hard drive and simply restore the operating system using the restore disk.
Interesting Fact
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In late December 2008, blogging platform Journalspace discovered why backups of all varieties were so important. Its backup system failed, and it had no data or system backups. All the online journals were lost.
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References
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