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We live in the“computer age”. Long ago computers couldn’t do much. They were very big and expensive. They used a lot of energy(能量). Only a few people were interested in them. Today computers are bigger and cheaper. They can do difficult work.
Computers have becomeimportant for many reasons. They work faster and make fewer mistakes. They can remember much information. A computer can work out millions of problems in a few seconds. A person might need years to work out so many problems.
People now use computers in nearly every kind of work. Computers are very useful and the use of computers is growing. More computers mean more jobs for people,because people need to run(操作) and mend them.
Would you like to learn how to run a computer?