This book presents a thorough treatment of microprocessor hardware and software. The various concepts have been explained in a systematic and integrated manner so as to develop a clear and comprehensive understanding of microprocessor technology.Beginning with the fundamentals of digital electronics, the book explains the development and evolution of various microprocessor generations. It then presents a detailed account of microprocessor architecture, followed by 8085 instructions, timing and control and programming. Memory devices are then thoroughly explained, followed by data transfer schemes. The book then discusses various contemporary support chips and their applications.A large number of solved examples are included throughout the text to illustrate the concepts and techniques. Review and objective questions are also included for self test.The book would serve as an excellent text for degree and diploma students of Computer Science and Engineering and Electronics.