V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

HDD
       Highly Doped Drain (IC, MOSFET)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

HDD
       Hard Disk Drive (HDD)


The Free On-line Dictionary of Computing (30 December 2018):

hard disk drive
hard drive
HDD

    (HDD) A disk drive used to read and write hard
   disks.

   (1995-03-14)