Python's predecessor. Interactive language, environment for personal computing, originally intended as replacement for BASIC. Designed by first doing task analysis of programming. Home site, description, code samples, downloads, contact.

By Leo Guerts, Lambert Meertens, Steven Pemberton; Prentice Hall, 1991, ASIN 0130000272. Full details of language, implementations; many sample programs. [Amazon.com]

Classic test program, written in ABC.