Mechanical calculatorW
Mechanical calculator
AddiatorW
Addiator
Adding machineW
Adding machine
Analytical EngineW
Analytical Engine
Antikythera mechanismW
Antikythera mechanism
ArithmaurelW
Arithmaurel
ArithmometerW
Arithmometer
AstrolabeW
Astrolabe
Frank Stephen BaldwinW
Frank Stephen Baldwin
ComptometerW
Comptometer
CurtaW
Curta
Difference engineW
Difference engine
Dorr FeltW
Dorr Felt
Thomas Fowler (inventor)W
Thomas Fowler (inventor)
Curt HerzstarkW
Curt Herzstark
JetonW
Jeton
Leibniz wheelW
Leibniz wheel
Mercedes-EuklidW
Mercedes-Euklid
Minoan Moulds of PalaikastroW
Minoan Moulds of Palaikastro
Napier's bonesW
Napier's bones
Odhner ArithmometerW
Odhner Arithmometer
Willgodt Theophil OdhnerW
Willgodt Theophil Odhner
Organum MathematicumW
Organum Mathematicum
Pascal's calculatorW
Pascal's calculator
Pinwheel calculatorW
Pinwheel calculator
RectangulusW
Rectangulus
Difference engineW
Difference engine
Wilhelm SchickardW
Wilhelm Schickard
Slide ruleW
Slide rule
Stepped reckonerW
Stepped reckoner
Tabulating machineW
Tabulating machine
The Millionaire (calculator)W
The Millionaire (calculator)
Tide-Predicting Machine No. 2W
Tide-Predicting Machine No. 2