Counting/Caculating Inventions
Category: Other
Updated: 4 Nov 2019
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Created byEmily Stark
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Periods
2-foot folding slide ruleLog slide ruleImproved slide ruleCylindrical slide ruleDuplex rulerSlide ruleModern Slide ruleThe mechanical slide ruleThe Pascal calculatorLogarithmsThe first mechanical calculating machinesMechanical pocket calculatorSlide adder pocket calculatorsThe oldest known example of a counting boardHand AbacusRussian AbacusChinese AbacusJapanese AbacusCranmer abacusEgyptian abacusNapier's bonesAttempt to make a tool with Napier's rodsple of a time spanA calculating instrument with Napier's rodsThe Description and Use of Two Arithmetick Instruments of Samuel MorlandOldest known multiplication tableOldest known tables using a base of 10The mechanical calculatorThe ComptometerMultiplication tablesThe Difference Engine no.1The Difference Engine no.2Smaller version of the difference engineMartian Wiberg's version
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