Digital Electronics: Principles and Applications is a practical, field-tested text that prepares students for entry-level electronics jobs. This introductory text is designed for use as an introduction text for students who are new to the field of electronics. Prerequisites are general mathematics and basic dc circuits. Digital Electronics can be studied before or concurrently with a course in basic electronics, since knowledge of active discrete components is not a prerequisite. Changes in this edition reflect input from reviewers and instructors. PLDs (Programmable Logical Devices) are introduced in chapter 4.