P.O.D.

/POD/ [rare; sometimes POD without the periods] Acronym for Piece Of Data or
Plain Old Data (as opposed to a code section, or a section containing mixed
code and data). The latter expansion was in use by the C++ standards
committee, for which it indicated a struct or class which only contains data
(as in C), distinguished from one which has a constructor and member
functions. There are things which you can do with a P.O.D. which you can't
with a more general class.