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We are in the computer age today. The computers are working all kinds of wonders now. They are very useful in automatic control and data processing. At the same time, computers are finding their way into the home. They seem to be so clever and can solve such complicated problems that some people think sooner or later they will replace us. But I do not think that there is such a possibility. My reason is very simple: computers are machines, not humans. And our tasks are far too various and complicated for any one single kind of machine to perform. Probably the greatest difference between man and computer is that the former can do things of his own while the latter can do nothing without being programmed. In my opinion, computers will remain nothing but an extension of our human brains, no matter how clever and complicated they may become.