A text for two- and four-year programs in industrial electronics, electronics, and electrical technology, for students with an understanding of algebra up to quadratic equations and of trigonometry up to the simple properties of triangles. Coverage includes semiconductor diodes; industrial control devices; digital electronics; programmable logic controllers; and robotics, and features learning objectives; review quizes; problems; and essay questions. Includes a glossary, reference appendices, and two-color diagrams. Annotation c. by Book News, Inc., Portland, Or.