Pascal's (1623-1664) digital counting machine (1642) showing, top, two of the train of number wheels which were viewed through windows in the casing of the machine. Engraving from Denis Diderot Encyclopedie, Paris, 1751-1780

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TOP09096157

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達志影像

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RM

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須由TPG 完整授權

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NO

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NO

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No

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