This Second Edition, revised to reflect developments that have occurred since publication of the first edition, provides engineers and scientists with the latest techniques in digital equipment design utilizing integrated circuits, including large-scale integration. Several topics have been revised significantly--there is expanded coverage of Schottky TTL, ECL and CMOS, and the section on ``Latches and Flip-Flops'' is reorganized, emphasizing the difference between these two storage elements. An entire chapter is devoted to the vast changes that have occurred in LSI and VLSI in the past decade. The text evolved from a course on digital circuits given at the University of Hawaii. Over 400 examples and problems, with step-by-step procedures utilizing up-to-date components, facilitate self-study, consolidating the learned material and broadening its scope.