(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)