arithmometer

The accountant uses an arithmometer to calculate the monthly expenses.

Definition

1. Noun:
   • A mechanical calculating machine: The "arithmometer" is a type of early mechanical calculator that performs arithmetic operations, such as addition, subtraction, multiplication, and division, typically using gears and levers. It was a precursor to modern electronic calculators.
   • Historical computing device: Specifically, it refers to a design developed in the 19th century, notably by Charles Xavier Thomas de Colmar, which became one of the first commercially successful mechanical calculators.

Usage Examples

• Noun:
  • The museum displayed a rare arithmometer from the 1800s. (A historical mechanical calculator used for arithmetic.)
  • Engineers once relied on the arithmometer for complex calculations before the advent of digital computers. (A device that mechanized arithmetic tasks.)
  • She learned how to operate an arithmometer by turning its crank and reading the results from its numbered dials. (A specific manual procedure for using the machine.)

Advanced Usage

• "to use an arithmometer": to operate this specific type of mechanical calculator for mathematical work.

  • In the 19th century, accountants would use an arithmometer to speed up their bookkeeping. (A practical application of the device in business.)

• "the arithmometer's mechanism": refers to the internal mechanical system of gears and drums that performs calculations.

  • The arithmometer's mechanism relied on a stepped drum to represent digits. (A technical description of its internal workings.)

Variants and Related Words

• Arithmetic (n): the branch of mathematics dealing with numbers and basic operations like addition and subtraction.

  • The arithmometer was designed to automate arithmetic. (The machine's purpose relates to this mathematical field.)

• Arithmetical (adj): relating to arithmetic.

  • The arithmometer performed arithmetical operations with precision. (An adjective describing the type of work.)

Synonyms

• Mechanical calculator: a broader term for any calculating machine that uses physical components.
• Adding machine: a simpler device that focuses on addition and subtraction, though the arithmometer could do more.

Related Idioms

• No idioms directly involve "arithmometer", as it is a highly specialized, historical term. However, one might say:
  • "Crank away at the arithmometer": a figurative expression meaning to work hard at a repetitive, mechanical task, derived from the physical act of turning the machine's handle.

    • He spent hours cranking away at the arithmometer, checking his accounts. (A metaphorical use based on the device's operation.)