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

TPA
       Transient Program Area (DOS)


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

TPA
       Third Party Applications


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

Transient Program Area
TPA

    (TPA) The region of memory CP/M set aside
   for user programs.

   (2001-11-01)