+A hard drive is a fundamental, non-volatile [Data Storage](/wiki/data_storage) device within most [Computer](/wiki/computer) systems. It stores digital information persistently on spinning magnetic platters, preserving everything from an operating system to personal files, even when power is off.
+## See also
+- [Solid-State Drive](/wiki/solid-state_drive)
+- [RAM](/wiki/ram)
+- [File System](/wiki/file_system)
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