It is appropriate for an introductory course in digital electronics for the students of : B.Sc. (Computer Science), B.Sc. (Electronics), B.Sc. (Information Technology), B.Sc. (Physics), Bachelor of Computer Applications (BCA), Postgraduate Diploma in Computer Applications, Master of Computer Applications (MCA). The book emphasizes the must know concepts that should be covered in an introductory course and provides an abundance of clearly explained examples, so essential for a thorough understanding of the principles involved in the analysis and design of digital computer.