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The computer is the most important invention since the type of engine was used in cars. Today it is the greatest effect on science, industry and business,but it’s being used more and more in education and medicine. It has touched the lives of everyone. It’s a revolutionary invention. The oldest kind of computer is the abacus (算盘),used in China since the sixth century. In the seventeenth century an adding machine was invented,but the first large modern computer was built in 1937.
The computer is the most important invention since the type of engine was used in cars. Today it is the greatest effect on science, industry and business, but it’s being used more and more in education and medicine. It has touched the lives of everyone. It’s a revolutionary invention. The oldest kind of computer is the abacus (used in China since the sixth century. In the seventeenth century an adding machine was invented, but the first large modern computer was built in 1937.