Prevención en el uso de redes sociales

Computer History Museum Computer History John Kopplin © 2002 The first computers were people! That is, electronic computers (and the earlier mechanical computers) were given this name because they performed the work that had previously been assigned to people. This picture shows what were known as "counting tables" [photo courtesy IBM] A typical computer operation back when computers were people. The abacus was an early aid for mathematical computations. A very old abacus A more modern abacus. In 1617 an eccentric (some say mad) Scotsman named John Napier invented logarithms, which are a technology that allows multiplication to be performed via addition. An original set of Napier's Bones [photo courtesy IBM] A more modern set of Napier's Bones Napier's invention led directly to the slide rule, first built in England in 1632 and still in use in the 1960's by the NASA engineers of the Mercury, Gemini, and Apollo programs which landed men on the moon. A slide rule A Leonardo da Vinci drawing showing gears arranged for computing