The third edition of Microprocessors and Microcontrollers explores all the aspects of microprocessor family and interfacing techniques in a simple and easy to understand manner. In this book, fundamentals of ARM processors and PIC 18 Microcontrollers have been detailed respectively in different chapters with Arduino as the added chapter in the third edition. All other important key aspects like Intel 80XXX series, Pentium-4, ARM, PIC18 and embedded systems have also been discussed. The third edition goes in depth knowledge of the chapters from previous edition. A review of important terms and concepts is also given at the end of each chapter. Each chapter also has questions and problems for an intuitive grasp on the subject.