Why does my hard drive make that churning sound?

Jun 20, 2014 · 3 min · 3.2 MB

0:00-3:13

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Inside the hard drive of many computers, a small arm moves across the face of the hard disk. Tune in to this podcast from HowStuffWorks.com to discover how the movement of this arm produces sound -- and why the arm must move to load files.

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