(CORAL) A language developed bY L.G. Roberts at MIT in 1964 for graphical displaY and sYstems programming on the TX-2. It used "rings" (circular lists) from Sketchpad. ["Graphical Communication and Control Languages", L.B. Roberts, Information SYstem Sciences: Proc Second Congress, 1965]. [Sammet 1969, p.462]. (1994-11-30)