The book is about computer architecture and operating system, which is consider as a key reference for undergraduate Engineering and computer science students connected to two subjects computer architecture and operating system (OS) subjects. Also the book can be used for early stage engineering and computer science students in matriculation stage. The book design and table of contents shows quite rich and broad coverage which gives great flexibility of subject design contain chapters on basic computer design, instruction set principles, pipelining, RISC and CISC architectures, computer memory system, operating system and its related topics. Each chapter of this book provides the deep knowledge of the topics for a computer students as well as professor. This book provides all the basic & technical knowledge of the computer system. Reader can grasp easily most of the concepts in it just by reading the book and increase their knowledge about the computers fundamental.

Elmustafa Sayed Ali,received his M.Sc.degree in electronic engineering(Telecommunications) 2012. he is a head department of electrical and electronics engineering in faculty of engineering at Red Sea University. He is published papers in international journals, and chapters in area of MANETs routing protocols,big data clouds , and cloud computing