Classic C

Classic C /klas'ik C/ [a play on `Coke Classic'] n.  The
   C programming language as defined in the first edition of {K&R},
   with some small additions.  It is also known as `K&R C'.  The name
   came into use while C was being standardized by the ANSI X3J11
   committee.  Also `C Classic'.

   An analogous construction is sometimes applied elsewhere: thus,
   `X Classic', where X = Star Trek (referring to the original TV
   series) or X = PC (referring to IBM's ISA-bus machines as opposed
   to the PS/2 series).  This construction is especially used of
   product series in which the newer versions are considered serious
   losers relative to the older ones.