The book begins with a VERY simple circuit and continues to a very complex circuit (computer) when explaining things. This is the first book that allows ordinary people to understand exactly how the processor, the main and most complex parts of a computer, working. In fact, it really explains the operation of a complete computer, though simple. Although most explanations of how computers work a lot of analogies or require a background in electrical engineering, this book will tell you exactly what each of them and how each of them works without requiring prior knowledge of computers or electronics.