In the decidedly pre-digital 19th century, English polymath Charles Babbage developed his design for an Analytical Engine, a machine that incorporates many of the functional ideas of modern computers. The diagram in our photo today shows the plans for the inner workings of Babbage"s mechanical computer. Construction was difficult and expensive, given the precision required for the crafted metal parts, so Babbage tinkered on his own but died before he saw his vision realized. Engineers have since built working models of Babbage"s machine.
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