There are a lot of stores on the Internet. You can buy almost anything. You can buy stock markets too. That makes the people in that area of business less stressful. A lot of businesses use computers.
Computers help store things.
Instead of using a lot of paper you can use a disk. That means computers save trees. If I wanted to see China or another place in the world, a computer would let me see those places by using the Internet. That saves money and time. The computer also has games and classes you can take.