Precursors
This is a list of examples of early computation devices considered precursors of the modern computers. Some of them may even have been dubbed 'computers' by the

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The similarity between linear mechanical components, such as springs and dashpots (viscous-fluid dampers), and electrical components, such as capacitors, inductors, and resistorsis striking in terms of mathematics. They can be modeled using equations of the same

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Analog computing devices are fast, digital computing devices are more versatile and accurate, so the idea is to combine the two processes for the best

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Analog computers often have a complicated framework, but they have, at their core, a set of key components that perform the calculations.

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In general, analog computers are limited by non-ideal effects. An analog signalis composed of four basic components: DC and AC magnitudes,

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In the 1950s to 1970s, digital computers based on first vacuum tubes, transistors, integrated circuits and then micro-processors became more economical and precise. This led digital

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Mechanical analog computers
While a wide variety of mechanisms have been developed throughout history, some stand out because of their theoretical importance, or because

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