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Of all the wonder of modern invention the computer is the most attractive to me. It works just like Aladin's wonderful lamp. It can solve a great problemin the twinkling of an eye. The computer can take very quick and correct decision. With the help of the computer human beings can whole world in their grips.
The artificial satellite is another wonder of modern science. The first artificial satellite name is Sputnik-1 was sent by USSR on 4 October 1957. Satellites are of different types as weather satellites, earth, satellites, communication satellites etc.