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Evolution of Computer Hardware. The Abacus. The Slide Rule (invented early 1600s). The Pascaline ( invented by Blaise Pascal, circa 1642 ) This is the front view. The Pascaline (rear view). The Reckoner (by Gottfried Wilhelm von Leibniz, circa 1700).
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The Pascaline(invented by Blaise Pascal, circa 1642)This is the front view.
Joseph Marie Jacquard’s Loomcirca 1830(note the punch cards)
The Mark I… used paper tape to store data and program instructions
Howard Aiken, a Ph.D student at Harvard University inside the Mark I
UNIVAC… the first general-purpose computer for commercial use (late 1940s)
After Vacuum Tubes came TransistorsThis is the first point-contact transistor.