    CAT(IV)                      10/27/73                     CAT(IV)

    NAME
         cat - phototypesetter interface

    DESCRIPTION
         Cat provides the interface to a Graphic Systems C/A/T photo-
         typesetter.  Bytes written on the file specify  font,  size,
         and  other  control information as well as the characters to
         be flashed.  The coding will not be described here.

         Only one process may have this file open at a time.   It  is
         write-only.

    FILES
         /dev/cat

    SEE ALSO
         troff(I),  Graphic Systems specification (available on re-
         quest)

    BUGS

                                  - 1 -