手摇式计算机 H到
手摇式计算机
十七世纪计算技术(续) 1671E, Gottfried Leibniz A Calculator that could perform multiplication and division as well as addition and subtraction Started with Pascal calculator Added two additional sets of wheels that could perform multiplications and division by repetitive addition or subtraction Used Chains and Pulleys
十八世纪和十九世纪计算技术 1750 Mechanical Weaving Technology Jacquard Loom(1801) Punched card for manual instruction first Used mechanically in Jacquard Loom .Holes in the punched cards used for the control of the movement of parts of the loom the first programmable process control machine Operation under program control
提花纺织机 (1801)
