Calculators

Calculators

A calculator (in the current usage of the word) is an electronic hand-held device that performs mathematical computations. Calculator may also refer to: Calculator (software), a computer program that performs mathematical computations.

A calculator is a small hand-held computer that performs mathematical calculations. ... It is also a program on a computer that simulates a hand-held calculator. Calculator programs let you perform simple math calculations without leaving the computer. The Apple Macintosh comes with a calculator desk accessory. Calculators (and computers) combine inputs using electronic components called logic gates. As the name implies, a logic gate acts as a barrier in an electronic circuit; it takes in two electric currents, compares them and sends out a new current based on what it finds.

The prime objective of the calculator is to perform a number of calculations in response to user supplied input. The possible number of calculations is pre-defined. The results of the calculations may be presented in summary or detailed format. It is these outputs that are the main business functions of the calculator.