Harold V. McIntosh
Departamento de Aplicación de Microcomputadoras,
Instituto de Ciencias, Universidad Autónoma de Puebla,
Apartado postal 461, 72000 Puebla, Puebla, México.
E-mail:mcintosh@servidor.unam.mx
November 10, 1990
Research on the subject of cellular automata is surveyed, with the intention of distinguishing between what has and what has not been accomplished during the course of its history.