1. Descriptive Geometry Language. early CAD/CAe language, used light pen. "Interactive Graphic Consoles - environment and Software", R.L. Beckermeyer, Proc FJCC 37 (1970). 2. Data General ca 1973-1974. Derivative of ALGOL 60, developed from DG' s ALGOL-5, used as the systems language under ef="module.php?name=Lexikon&file=search&eid=1&query=AOS">AOS and ef="module.php?name=Lexikon&file=search&eid=1&query=RDOS">RDOS for the DG eclipse family of computers. Replaced by PL/I in theearly 80' s. Data General manual 093-000229-01.