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John Napier made Logarithms
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Blaise Pascal made the First working Calculator
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Leibnitz made the complex calculator
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Joseph Marie Jacquard made the Loom
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Lady Augusta Ada made the world’s first working programmer
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Charles Babbage designed Different English Modern Computer but it was never built
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John Vincent first abc computer in the early 40s
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Alan Turing published a paper called On Computable numbers 1942
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Bletchley Park hacked the World War 2 code breakers
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Tommy Flowers & Alan Turing invented the first electronic computer called Colossus
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Howard Aiken made the first mechanical relay that made computers smaller
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Dr Grace Murray Hopper invented the COBOL , a moth flew into her computer