Understanding the Digital World: What You Need to Know about Computers, the Internet, Privacy, and Security, Second Edition

A brand-new edition of the popular introductory textbook that explores how computer hardware, software, and networks work

Computers are everywhere. Some are highly visible, in laptops, tablets, cell phones, and smart watches. But most are invisible, like those in appliances, cars, medical equipment, transportation systems, power grids, and weapo