Source : Free On-Line Dictionary of Computing

Graphics Language Object System
     
         (GLOS) A language with statements for
        describing graphics objects (line, circle, polygon, etc.),
        written by Michael J McLean and Brian Hicks at the University
        of Queensland, St. Lucia in 1978.  New objects are defined
        using {procedures}.  2-D transformations are context dependent
        and may be nested.
     
        [M.J. McLean, "The Semantics of Computer Drafting Languages",
        PhD thesis, University of Queensland, 1978].
     
        [Hicks, B.W., and McLean, M.J. "A Graphic Language for
        Describing Line Objects", Proceedings of the DECUS-Australia
        August 1973 Symposium, Melbourne, 1973].
     
        (2002-06-01)