🚀 go-pugleaf

To the best of my recollection, DEC didn't use the word personal in
conjuction with computer until the late 70's: they certainly weren't
using it in the 60's.  I qoute from my 1963 edition of the DEC PDP1
handbook:

  PDP stands for *Programmed Data Processor* and is a trademark
  of Digital Equipment Corporation. 

The same quote appears in my July, 1969 edition of DEC's 
  Introduction to Programming
    PDP-8 Family Computers
and my 1970 edition of DEC's
  Small Computer Handbook

I can find no expansion of the PDP acronym in any DEC manual with
a publication data later than 1970.