Computer
There are all kinds of machines. They are used in many different ways. One kind of machines is called computer. A computer can do many things. A computer can do maths problems. People can do maths problems,too. But they can't do it as fast as a computer. Computers remember things. Computers remember everything people tell them. People can not remember as many things as computers. Computers help to tell what the weather will be like. Computers help to fly rockets and spaceships.
There are a lot of ways computers are used. They are used in thousands of ways. But they are not alwaysused in the same way. Some computers do just a few things. Some computers can do a lot of things. There are huge (巨大的) computers. There are small computers, too. There may be computers in your school. Do you know what they do?
