Code: The Hidden Language of Computer Hardware and Software by Charles Petzold. A great book that explains how computers actually work through number systems a

Code: The Hidden Language of Computer Hardware and Software by Charles Petzold. A great book that explains how computers actually work through number systems and the logic that acts on those systems. You start with the theory behind binary numbers and work your way through electrical circuits, logic gates, RAM, transistors, and the operating system as you build your fundamental knowledge of the inner workings of computers. It's pretty cool.