CONTROL SYSTEM AND CODE FOR A GRAPHICAL PLOTTING MACHINE OR LIKE APPARATUS

摘要

A system for controlling a graphical plotting machine includes receiving output data from a computer's central processing unit arranged in a new code format. The new code format significantly reduces the quantity of data and the time required for the data's transmission to a graphical plotting system in obtaining a given plot from a graphical plotting machine. Incorporation of repeat and tacking control commands in the code structure makes this possible. A controller portion in the graphical plotting system having apparatus responsive to the repeat and tack control commands, receives and decodes the data and then transmits the appropriate commands to the graphical plotting machine.