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The computer is the greatest invention this century . Since the first computer came into the world it has developed quickly and greatly changed our life . Since it can think , can remember and can calculate much faster than a human being, it is widely used in industry, agriculture, education, business, travel service and so on . For example, one can use the computer in a library to check the book he wants; people at an airport can make buying and selling tickets faster and easier with the computer. By 2000 , the computer will come into everyone' s life, so it is important for us to learn computer well. |