This book is designed for all students of engineering, arts and science colleges of various universities in India. An easy to understand text with crisp but complete explanation of topics will enable the students to understand the basic concepts easily. This book is organized with 15 chapters. The fundamental concepts, analysis and design of digital systems are presented in a very easiest and elaborative manner. Throughout the book, carefully chosen examples are presented so that the reader will have a clear understanding of the concepts discussed. Salient Features ? Solution for university questions will enable students to score better in examinations. ? Clear explanation of concepts with appropriate diagrams. ? Different types of fonts for text, proof and solved problems for better understanding. ? Step-by-step presentation of proofs and solved problems. ? Examples of digital system implementation using standard ICs. ? Practical application examples of digital systems.