What is another word for calculators?
Pronunciation: [kˈalkjʊlˌe͡ɪtəz] (IPA) 
Calculators are electronic devices used for performing mathematical operations. Synonyms for calculators include adding machines, arithmometers, comptometers, electronic calculators, slide rules and abacuses. Adding machines and arithmometers are mechanical calculators that were popular in the early 20th century. Comptometers are also mechanical calculators that were used extensively in businesses during the early years of the 20th century. Electronic calculators replace the mechanical counterparts with silicon chips and were introduced in the 1960s. Slide rules and abacuses were used before the existence of calculators and are still used in some regions. Regardless of the synonym used, calculators remain a useful tool in math education and business.
