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The first computers had vacuum tubes to carry data in the form of electronic signals. The first computer of the history was the ENIAC,and it was created by Charles Babbage
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They used transistors instead of vacuum tubes.
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They introcuded intergrated circuit
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They started using microprocessors
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1975 computers and nowadays computers are generation 4, but since 1975, the computers had change a lot
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This computers are the most avanced computers. The sciencist are trying to let the computers think by their own