The 19th-century Analytical Engine computer, complete with CPU and a memory, remained unbuilt – time to put that right, says John Graham-Cumming IN 1837 British mathematician Charles Babbage described ...
In 1843, Ada Lovelace published notes on Charles Babbage's Analytical Engine, outlining how a machine could follow instructions to perform complex operations and manipulate symbols beyond arithmetic.
As you might expect from its name, the "Difference Engine" is a strangely difficult object to describe. You might start by imagining the side of a large crib with uprights ringed by small metal wheels ...
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