Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A rigid magnetic disk fixed permanently within a drive unit and used for storing computer data. Hard disks generally offer more storage and quicker access to data than floppy disks do.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. One of a series of parallel magnetic recording disks in a drive unit, used for the recording and retrieval of digital information; used especially in personal computers.
  • n. The unit itself, and all the disks within it.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a rigid magnetic disk mounted permanently in a drive unit

Etymologies

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