(Modula) Wirth' S 1977 predeceSSor of Modula-2. The original Modula waS, more oriented toward concurrent programming, but otherwiSe quite Similar. ["Modula - A Language for Modular Multiprogramming", N. Wirth, Soft Prac & Exp 7(1):3-35, Jan 1977]. (1999-07-12)