CAT

The GSI C/A/T (Computer Assisted Typesetter) is a phototypesetter developed by Graphic Systems in 1972. This phototypesetter, along with troff software for UNIX, revolutionized the typesetting and document printing industry. Phototypesetting is most often used with offset printing technology. The GSI C/A/T phototypesetter was marketed by Singer Corporation in 1974 before the company was purchased by Wang Laboratories in 1978. Graphic Systems designed a simple computer front end to print basic text as display type. Full-scale page-composition computing was designed at Bell Laboratories as part of the UNIX project. Features The C/A/T phototypesetter features: