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Blaise pascal
He invented a first calutating machine. -
Gottfied Wilhem Leibniz
He developed a calculator (+,-,/,x) -
charles babbage
He is grandfather of computer. -
Ada lovelace
First female programmer. -
herman hollerith
The first one to make modern day computer IBU. -
Tommy flowers
He designed colossus. -
Alan Turing
Predict missile target. -
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Bill gates
He started up microsoft in 1975.