What Is the Purpose of a Computer Hard Drive?
Hard drives are integral to computer function, providing a permanent, physical storage space for all files, folders and other content stored on the machine. Without a hard drive, the computer would be unable to store any data permanently.
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Data Storage
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A hard drive is a permanent storage device that retains information when power is removed from the computer. Operating system, program files and personal documentation are stored on a hard drive.
Back Up
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Hard drives can be made to mirror another as an effective backup of critical data. This is done using RAID technology.
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Condensed Storage
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Cumbersome media, such as boxes of VHS tapes or CDs, can be condensed by copying the information to a computer. Books, important documents and other information can also be stored on hard drives to reduce bulk.
External (Mobile) Drives
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External hard drives can be used as portable storage devices to transfer information from one physical location to another.
Other Electronics
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Hard drives can be found in many electronics, including cameras, music players, DVRs and other storage devices. These are used to store information on the various devices and retain user settings permanently, even when the device is shut off.
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