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

PDP
       Parallel Distributed Processing (AI)


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

PDP
       Peripheral Data Processing


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

PDP
       Plasma Display Panel


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

PDP
       Programmable Data Processor (DEC)


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

Programmed Data Processor
PDP

    (PDP) Early (1960's?) Digital Equipment
   Corporation family of minicomputers.  The best known ranges
   were the PDP-10 and PDP-11.  PAL was the assembly
   language.

   (1997-11-21)