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The abacuc was used for writing since 3000b.c.
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These machines didnt work well because of their bad mechanical parts.
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Charels Babbage (father of computers) made a machine wich showed the square of a number. the main parts are cpu, output, input, processer.
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This device punched holes in cards wich made instructions.
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Lady Augusta was Charels Babbages assistant. She was called the first computer programer.
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This was used to calculate the population
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The A.B.C was the first computer invented. It used vacume tubes.
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This machine was not a computer but a giant calculator.
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The ENIAC could preform 5,000 additions per second. It was 1500sqft,and used thousands of vacume tubes.
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Steve was born in California. In early 1974 he worked at Atari as a video game designer later he created Apple.
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He was born on October 28, 1955. He was also a buisness man. Hewas the founder of Microsoft.
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These were used in the second generation of computers. The transistor was a switch. The 2nd generation of computers reduced size, got faster, and could process lots of information.
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These were used in the third generation of computers. The third generation of computers again reduced size, cost, increased speed. It was also more reliable.
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Microprocessors were used in fourth generation computers. They had large scale circuits and tnere speed increased.
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