Quote: Babbage used Jacquard cards, punched cards read by needles that raised particular warp threads; interlaced with twine in an endless sequence, pegs guided the cards over a cylinder

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[To control his analytical engine, Babbage] intended to use a variation of the … [ref] … [Posselt, E.A., The Jacquard machine, 189-? (sic)], the precursors of Hollerith's punched cards, were used by the … … The cards allowed certain needles to be extended … the desired pattern. In order to continue the … that one card was brought into position immediately … which guided the cards over a cylinder.   Google-1   Google-2

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Topic: history of computers (66 items)