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Electricity
In the 20 Century the electricity was invented -
Second Generation of computers (photo)
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First Generation of Computers
The first Generation of computers used vacuum tubers -
ENIAC
The ENIAC was a first generation of computers, it weigted 27 tons. It occupied a room of 167m2 and worked with 17.500 vacuum tubes which could raise the room temperature up to 50ºC -
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Second generation of computers
The second generation of computers used transitors that are faster than vacuum tubers that's why it was smaller and cheaper -
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Third generation of computers
The third generation used integrated circuits which are like transitors but much faster (1000 times faster) that's why it uses less electricity and are much faster -
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The fourth generation of computers
The fourth generation of computers use mico-proccesors to procces the information faster, and they are smaller and produce less heat -
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The Fifth generation of computers
The fifth generatioof computers instead of human will be AI (ARTIFICIAL INTELIGENT)