A simple, straightforward guide to digital circuitry for students and hobbyists. Lisa A. Doyle has revised this popular reference to cover the latest memory chips and packages, microprocessor basics, alphanumeric codes, demultiplexers, LCDs and much more. In addition, the best parts of the first edition have been retained: thorough descriptions of digital codes, conversions, and number systems; explanations of the basics of logic; and examples of the application for digital circuitry in TVs, stereos, communications, automobiles and computers.