The Internet has been with us for a surprisingly long time (Queen Elizabeth II sent her first email in 1976), and there are many people alive today who do not remember life without it. How did we communicate? Where did we go for information? This book follows the development of information technology from the invention of writing through the earliest computers (earlier than you think!) to the present day. It explains in simple terms how the Internet works, and how it differs from the World Wide Web. An important section at the end discusses how young readers can stay safe online.