When you talk or write a letter to your family or friends, you are using language to communicate with them. The World Wide Web lets us communicate by using computers. And on the Web we can send not just words but also sounds and pictures. Our earliest ancestors communicated with grunts and hand signs. Then came language; at first spoken, then written. Writing let us send messages to people far away, but they took a long time to arrive. In 1876, Alexander Graham Bell invented the telephone, which lets us talk to each other along wires.  In the mid-20th century, scientists began to use huge computers to do difficult sums. After another 25 years, the personal computer was born. It was able to store our words and pictures and music. By the 1970s, computers were talking to each other along phone wires, and in 1990 a British scientist called Tim Berners-Lee worked out a system of addresses and links  By the 1970s, computers were talking to each other   along phone wires, and in 1990 a British scientist called Tim Berners-Lee worked out a system of addresses and links – just like a new language – so computers all over the world could talk to each other. When computers link up this way they form the internet… also known as the wonderful WORLD WIDE WEB!