J. Glenn Brookshear - Computers - 1989 - 322 pages
Preliminaries; Finite automata and regular languages; Pushdown automata and context-free languages; Turing machines and phrase-structure languages; Computability; Complexity ...
Vladimir Zwass - Computers - 1981 - 268 pages
Introduces & Explains the Fundamental Concepts of Computer Science. Designed to Be Used as a Textbook, a Supplement, a Review, or a Reference Manual