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Comptometer
01
comptomètre, calculateur mécanique
a mechanical calculator developed in the late 19th century, featuring multiple rows of keys corresponding to digits
What is a "comptometer"?
A comptometer is an early type of mechanical calculator that was widely used for business and accounting purposes in the late 19th and early 20th centuries. It has a series of keys, each representing a number, and is used for performing arithmetic operations such as addition, subtraction, multiplication, and division. The comptometer works by pressing keys to input numbers, and the device then automatically performs the calculations. It was a significant advancement over earlier calculating devices, as it allowed for faster and more efficient calculations.
Example
In the early 20th century, offices relied on comptometers for fast and accurate calculations of financial data.
The accountant efficiently computed large sets of numbers using a comptometer during the 1950s.

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