Digital Electronics: Principles and Applications, Ninth Edition, is an easy-to-read introductory text for students new to the field of digital electronics. Providing entry-level knowledge and skills for a wide range of occupations is the goal of this textbook and its ancillary materials. Concepts are connected to practical applications, and a systems approach is followed that reflects current practice in industry. This concise and practical text can be used in any program needing a quick and readable overview of digital principles.