bn:18020896n
Noun Named Entity
Categories: Harv and Sfn template errors, Mathematical tools, Office equipment, Mechanical calculators, Articles with short description
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 device for arithmetic operations Wikidata