Based on the premise that information is essential to survival and that computers are essential to the best use of information, this book explains how computers and information system work, where they work, and how the affect society’s physical, political, and ethical environment. It is a reflection of our commitment to students and their need to prepare for the demands of the information age. Whether a student wishessimply to understand the use of computers and the role they play in today’s world, to work with computers to manage information n his or her own life, or to design information system, this text offers a comprehensive, up to date look at computers and their considerable impact.