HDD

from The Free On-line Dictionary of Computing (8 July 2008)

hard disk drive
hard drive
HDD

   <storage> (HDD) A {disk drive} used to read and write {hard
   disks}.

   (1995-03-14)

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

HDD
       Hard Disk Drive (HDD)

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

HDD
       Highly Doped Drain (IC, MOSFET)

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