bn:18020896n
Noun Named Entity
Categories: Articles with short description, Mechanical calculators, Office equipment, Harv and Sfn template errors, Mathematical tools
EN
mechanical calculator  calculating machine  calculating machines  calculator  Mechanical calculating device
EN
A mechanical calculator, or calculating machine, is a mechanical device used to perform the basic operations of arithmetic automatically, or a simulation such as an analog computer or a slide rule. Wikipedia
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EN
A mechanical calculator, or calculating machine, is a mechanical device used to perform the basic operations of arithmetic automatically, or a simulation such as an analog computer or a slide rule. Wikipedia
A calculating device used from the 1700s to the mid-1900s Wikipedia Disambiguation
Mechanical machine for arithmetic operations for absolute calculators Wikidata