The book has been written in an easy-to-understand and student-friendly manner, and includes several illustrative figures and examples, and project case studies. The text explains architecture, design principles, hardware and software designs, while keeping multidisciplinary under-graduates and post-graduates in mind as primary readers. Each chapter begins by defining the learning objectives for each section, recall from previous chapters, introduction and the important terms covered in that chapter.The book is intended as a text for students of Computer Science and Engineering, Information Technology, Master of Computer Applications and M.Sc(Computer Science).