From Amps to Apps: How Computers Work is an approachable, hands-on guide to understanding how computers work, from low-level circuits to modern software.From Amps to Apps: How Computers Work takes an informal approach to topics often reserved for textbooks. Each chapter covers one foundational aspect of computing. Exercises and hands-on activities throughout are designed to help you learn. Exercises mostly involve mental problem solving, while hands-on activities require you