Internet
A worldwide network that lets computers share information quickly.
The Internet is a vast global network that connects billions of computers, phones, and other devices, allowing them to share information instantly across any distance. When you visit a website, send an email, watch a video, or play an online game, you're using the Internet.
Think of it like an enormous web of electronic highways. Just as roads connect houses, towns, and cities, the Internet connects devices through cables, satellites, and wireless signals. Information travels along these pathways as tiny electrical signals or pulses of light, moving so fast that a message can circle the Earth in less than a second.
The Internet began in the 1960s as a small network connecting just a few university computers. Scientists and engineers wanted a way to share research quickly. By the 1990s, it had grown into the worldwide system we use today. Now it connects people across oceans, helps doctors share medical discoveries, lets students learn from teachers anywhere in the world, and allows friends and families to stay in touch no matter how far apart they live.
What makes the Internet special is that no single person or company controls it. It's more like a set of protocols, or shared rules: millions of networks worldwide have chosen to connect and follow the same rules for exchanging information. This cooperation created something unprecedented in human history, a tool that has transformed how we learn, work, and communicate.