What Is the Function of a Hard Disk Drive?

By Staff WriterLast Updated Apr 10, 2020 7:12:46 AM ET
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Jeff Kubina/CC-BY-SA 2.0

A hard disk drive, also known as a hard drive or HDD, is used to store data long term. Data can include the computer's operating system and applications as well as personal files including photographs, documents and music. When a computer is booted up, or turned on, the computer access the hard drive to load the operating system, such as Windows, OSX or Linux.

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