Conceptually similarSCIENCE SOURCEStep Reckoner, Leibniz Mechanical CalculatorSS2389765BR6655Rights ManagedSCIENCE SOURCEStep Reckoner, Leibniz Mechanical CalculatorSS2515427BV6894Rights ManagedSCIENCE SOURCEStep Reckoner, Leibniz Mechanical CalculatorSS2542664BX2151Rights ManagedSCIENCE SOURCEGottfried Wilhelm Leibniz, German MathematicianSS2392903BP7835Rights ManagedSCIENCE SOURCEGottfried Wilhelm Leibniz, German MathematicianSS2392873BP7805Rights ManagedSCIENCE SOURCEGottfried Wilhelm Leibniz, German MathematicianSS27034239N3464Rights ManagedSCIENCE SOURCEGottfried Wilhelm Leibniz, German MathematicianSS2543643BW9017Rights ManagedSCIENCE SOURCEGottfried Wilhelm Leibniz, German MathematicianSS2543644BW9018Rights ManagedPR INCGottfried Wilhelm Leibniz, German MathematicianSS21886829N1917Rights ManagedView AllView more with similar tones Step Reckoner, Leibniz Mechanical CalculatorLicense type:Rights ManagedUnique identifier:SS2389774Legacy Identifier:BR6667Description:Leibniz may have been the first computer scientist and information theorist. The Step Reckoner (or Stepped Reckoner) was a digital mechanical calculator invented by German mathematician Gottfried Wilhelm Leibniz around 1672 and completed in 1694. It was the first calculator that could perform all four arithmetic operations: addition, subtraction, multiplication and division. Its intricate precision gear work, however, was somewhat beyond the fabrication technology of the time; mechanical problems, in addition to a design flaw in the carry mechanism, prevented the machines from working reliably. Despite the mechanical flaws of the Stepped Reckoner, it gave future calculator builders new possibilities. The operating mechanism, invented by Leibniz, called the stepped cylinder or Leibniz wheel, was used in many calculating machines for 200 years, and into the 1970s with the Curta hand calculator.Credit:New York Public Library / Science SourceSize:5179px × 2570px (~38 MB)Get PricingHow Will The Visual Be Used?ShareKeywords:1672-1694-17th century-addition-all four arithmetic operations-art-calculating machine-calculation-colorized-counting wheel-diagram-digital mechanical calculator-division-enhanced-famous-first mass-produced mechanical calculator-g. leibniz-g. von leibniz-gottfried leibniz-gottfried von leibniz-gottfried wilhelm leibniz-gottfried wilhelm von leibniz-history-invention-leibniz-leibniz mechanical calculator-leibniz wheel-mechanical calculator-multiplication-Science-staffelwalze-step reckoner-stepped cylinder-stepped reckoner-subtraction-von leibnizFolder Legacy Identifier:enhancementsModel release:N/AParent folder:enhancements