This version of Cook's DC/AC text combines the coverage of "Introductory DC/AC Circuits", third edition, with 11 additional chapters of devices coverage. Coverage ranges from basic electricity, direct current and alternating current circuits, through semiconductor devices and op amps. The book builds upon the "practical learning approach" which uses historical success stories, guided examples, actual circuit applications, device testing, circuit troubleshooting, performance based objectives, quick-references summary sheets, integrated mini-math reviews, and much more, making all of the topics student friendly.