Here you can download Digital Logic and Computer Design By M. Morris Mano PDF for free. This book presents the basic concepts used in the design and analysis of digital systems and introduces the principles of digital computer organization and design. It discusses various methods and techniques suitable for a variety of digital system design applications and covers all aspects of digital systems. Also this a prescribed book for many universities not only in India but Around the world
(or) Buy the original hard copy books from amazon to support the author and for easy preparation. Since this book is very huge in terms of pages it is reasonable to consider purchasing one rather than reading from your device which strains your eyes.