CAT(4) CAT(4) 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(1) Phototypesetter interface specification