# Education - Calculating Tools

Here you will learn some English words related to calculating tools such as "calculator", "abacus", and "counting rod".

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calculator

a small electronic device or software used to do mathematical operations

[noun]
scientific calculator

a specialized calculator designed for solving complex mathematical and scientific equations, commonly used by students, engineers, and scientists

[noun]
printing calculator

a type of calculator equipped with a built-in printer that produces a physical record of calculations

[noun]
programmable calculator

a type of calculator that allows users to write and execute customized programs to automate complex calculations

[noun]
RPN calculator

a type of calculator that operates on a postfix notation system, where operators follow their operands, offering simplicity and efficiency in engineering and scientific calculations

[noun]
mechanical calculator

a device that performs arithmetic operations through mechanical means, often using gears, levers, and other physical mechanisms, predating electronic calculators

[noun]
calculating machine

a mechanical or electronic device designed for performing arithmetic operations such as addition, subtraction, multiplication, and division

[noun]
abacus

a tool used for counting and calculating that consists of a frame with rods or wires on which beads or stones are moved up and down using hands

[noun]
Napier's bones

a set of numbered rods used for multiplication and division, invented by John Napier in the 17th century

[noun]
reckoning board

a manual calculating tool with rows of beads or counters on rods or wires used for basic arithmetic operations

[noun]
counting rod

a tool with marked rods or sticks used in ancient math, especially in Chinese and Japanese traditions

[noun]
Comptometer

a mechanical calculator developed in the late 19th century, featuring multiple rows of keys corresponding to digits

[noun]
Difference Engine

a mechanical calculator designed by Charles Babbage in the 19th century, intended to perform mathematical calculations automatically by the method of finite differences, considered a precursor to modern computers

[noun]
Pascaline

an early mechanical calculator invented by Blaise Pascal in the 17th century, capable of performing addition and subtraction through gear mechanisms, considered one of the first mechanical calculators

[noun]
Curta

a compact, hand-cranked mechanical calculator invented by Curt Herzstark in the 1940s, renowned for its innovative design and portability, capable of performing complex arithmetic calculations

[noun]
slide rule

a mechanical analog device used for mathematical calculations, consisting of two logarithmic scales that slide past each other

[noun]