WordNet (r) 3.0 (2006):

electronic data processing
    n 1: automatic data processing by electronic means without the
         use of tabulating cards or punched tapes [syn: electronic
         data processing, EDP]

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

Electronic Data Processing
EDP

   1.  (EDP) data processing by computers.

   2.  The name of Honeywell's computer business
   between 1960, when it gained complete ownership of Datamatic
   Corporation, and 1963, when it was officially renamed
   Honeywell Inc.

   (1995-03-30)