Source : WordNet®

Tao
     n 1: an adherent of any branch of Taoism [syn: {Taoist}]
     2: the ultimate principle of the universe

Source : Free On-Line Dictionary of Computing

TAO
     
        Lisp dialect with concurrency, object-orientation and logic.
        "Concurrent Programming in TAO - Practice and Experience",
        I. Takeuchi in Parallel Lisp: Languages and Systems, T. Ito et
        al eds, LNCS 441, Springer 1989, pp.271-299.