TUTOR has powerful answer-parsing and answer-judging commands, graphics and features to simplify handling student records and statistics by instructors.
Tcsh is a scripting language and it is compatible with the Csh or C-shell scripting language.
Turing is a structured programming language, which is easy to learn and best suited for teaching computer concepts.
Tcl is a scripting language and extending programming language. It was developed in 1988 by John Ousterhout.