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Is a mathematician, physicist, and astronomer,he was the inventor of the logarithms.
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Was a French mathematician, physicist, inventor. he invented the mechanical calculator
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He was a mathematician, philosopher, inventor and mechanical engineer, who is best remembered now for originating the concept of a programmable computer. is credited with inventing the first mechanical computer.
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Was a British mathematician, logician, cryptanalyst and computer scientist.Turing worked for the Government Code and Cypher School (GC&CS) at Bletchley Park, Britain's codebreaking centre. For a time he led Hut 8, the section responsible for German naval cryptanalysis
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is an American business magnate, investor, programmer, inventor and philanthropist. Gates is the former chief executive and current chairman of Microsoft.Paul Allen help him,
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As an American entrepreneur, marketer, and inventor of Apple Inc.