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Aritmómetro electromecánico - Complet device

Torres Quevedo Museum

Torres Quevedo Museum

It is considered the first digital calculator in the world which was constructed by using relays, demonstrating its speed doing calculations and the possibility of introducing them in a logic circuit. The system consisted of a calculator machine conected to a typing machine in which the numbers and the operations were typed in the order they must be executed. After this, the calculations were carried out and, in the end, the typing machine wrote them in a paper. This calculator machine, or analytical machine as Torres Quevedo called it, had the usual subsystems that form a current computer at its disposal, such as an arithmetical-logical unit, a control unit, a memory, an input and an output device (both coincide with the typing machine in this case).

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  • Title: Aritmómetro electromecánico - Complet device
  • Provenance: Leonardo Torres Quevedo donation. Originating from the Laboratory of Automation in 1928.
  • Type: Mechanical device
  • Medium: Bronze, wood

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