CAT(4)

NAME
cat - phototypesetter interface

DESCRIPTION
Cat provides the interface to a Graphic Systems C/A/T phototypesetter. 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(1)
Phototypesetter interface specification