Abacist vs. Calculator — What's the Difference?

One who uses an abacus in casting accounts; a calculator.

An electronic calculator is typically a portable electronic device used to perform calculations, ranging from basic arithmetic to complex mathematics. The first solid-state electronic calculator was created in the early 1960s.

One who uses an abacus in casting accounts; a calculator.

An electronic or mechanical device for the performance of mathematical computations.

A person who operates such a machine or otherwise makes calculations.

A set of mathematical tables used to aid in calculating.

A mechanical or electronic device that performs mathematical calculations.

(dated) A person who performs mathematical calculation

A person who calculates (in the sense of scheming).

(obsolete) A set of mathematical tables.

One who computes or reckons: one who estimates or considers the force and effect of causes, with a view to form a correct estimate of the effects.

A small machine that is used for mathematical calculations

An expert at calculation (or at operating calculating machines)