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1942 to 1955 was the first generation, they were bigger and expensive.
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The first computers have vacumm tubes.
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E.N.I.A.C. was be the acronim of Electronic Numerical Integrator And Computer, E.N.I.A.C. there was be considerated the first digital computer of the history.
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Z4 was the second computer, that was be rediseinated after lose the planes that were desapear in the bombardment of Berlin. -
Now the programators use a grand lenguage level.
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1956 to 1964 was the second generation, but this had a tree important changes; they were much smalles, faster and cheaper.
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The second generation of computers haven't got Vacumm Tubes cause the transistors are more smaller and cheaper.
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1964 to 1975 was the third generation, also this generation, is faster and cheaper but have the same size.
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The third generation have integrated circuits that are faster and cheaper.
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In this generation the scientist think it the programm lenguage that they will go to use is the PROLOG, it is a programming language used in the start of year 1970.
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From 1975 to the present was the forth generation of computers, now the computers are portables, cheaper and now spend less electricity and heat.
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Microprocesors are small silicon chips with thousand of circuits.
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The first 8-bit microprocessor was the Intel 8008, for use in computer terminals.
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The last gen is not clear it is not clear because it is not known when there could be any progress.
