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

TPU
       Turbo Pascal Unit (TP, Borland)


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

Text Processing Utility
TPU

    (TPU) A DEC language for creation of
   text-processing interfaces, used to implement DEC's
   Extensible VAX Editor (EVE).

   (2000-05-08)