Computers are everywhere: at school, in our homes, and in factories and offices. Many people have a mini-computer in their pocket! This engaging series looks at computers and their uses, with an emphasis on the STEM principles that underpin how they work. The Internet is a huge network that connects computers all across the world. It's used by billions of people. People use it to look up websites, send emails, and share photos and videos. Find out what the Internet is, how it works, and how to stay safe when using it.