TAO definition language
1. A Lisp
dialect with concurrency
["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].
2. A programming language for APE/Quadrics parallel
computers, largely modelled on FORTRAN
and evolved from the even more primitive APESE
language. TAO is particularly hard to work with, due to the lack of systematics, poor documentation and a primitive compiler.