This thoroughly revised and updated edition on Computer Organization and Design is intended to make the students keep pace with the changes both in technology and pedagogy in the fast growing discipline of computer science and engineering. The students have therefore been introduced to the recent developments of Computer Architecture_particularly RISC and parallel processing.The subject is of increasing relevance as the merging of computer, communication technology and consumer electronics has opened up new vistas for a wide variety of designs of computer systems to be employed in diverse application areas. The basic principles of how the intended behaviour of complex digital functions can be realized with the interconnected network of digital blocks, have been explained in an easy-to-understand manner. This thoroughly revised and updated edition on Computer Organization and Design is intended to make the students keep pace with the changes both in technology and pedagogy in the fast growing discipline of computer science and engineering. The students have therefore been introduced to the recent developments of Computer Architecture_particularly RISC and parallel processing.The subject is of increasing relevance as the merging of computer, communication technology and consumer electronics has opened up new vistas for a wide variety of designs of computer systems to be employed in diverse application areas. The basic principles of how the intended behaviour of complex digital functions can be realized with the interconnected network of digital blocks, have been explained in an easy-to-understand manner.