Mechanical Calculator Invented In

The first mechanical calculator appeared in 1642 the creation of french intellectual and mathematics whizz kid blaise pascal as a device that will eventually perform all four arithmetic operations without relying on human intelligence the arithmometer.

Mechanical calculator invented in. The step reckoner or stepped reckoner was a digital mechanical calculator invented by the german mathematician gottfried wilhelm leibniz around 1672 and completed in 1694. The curta is a small mechanical calculator developed by curt herzstark. It is in one of the correspondences to kepler that schikard first describes his mechanical calculator in 1623 which he refered to as the arithmetical organum arithmetical instrument in english. Excluding the abacus or slide rule the first mechanical calculator was invented by french inventor blaise pascal in 1642.

The curta s design is a descendant of gottfried leibniz s stepped reckoner and charles thomas s arithmometer accumulating values on cogs which are added or complemented by a stepped drum mechanism. The calculator had many flaws and does not look like what we think of as a calculator or computer today. Blaise pascal invented a mechanical calculator with a sophisticated carry mechanism in 1642. He built twenty of these machines in the following ten years this machine could add and subtract two numbers directly and multiply and divide by repetition.

The name comes from the translation of the german term for its operating mechanism staffelwalze meaning stepped drum. It could add or subtract two numbers or divide and multiply by repetition using geared wheels. Pascal was led to develop a calculator by the laborious arithmetical calculations required by his father s work as the supervisor of taxes in rouen. In 1642 the renaissance saw the invention of the mechanical calculator by wilhelm schickard and several decades later blaise pascal a device that was at times somewhat over promoted as being able to perform all four arithmetic operations with minimal human intervention.

Pascal s calculator also known as the arithmetic machine or pascaline is a mechanical calculator invented by blaise pascal in the early 17th century. The mechanical calculators featured here are typical machines which were ousted by the cheap electronic calculators which were gradually developed during the 1960s and early 1970s. For information about the mechanisms of mechanical calculators see the calculator technology section. He built twenty of these machines in the following ten years.

After three years of effort and 50 prototypes he introduced his calculator to the public. Soldiered on till 1915.