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An electronic calculator is a small, portable electronic device used to perform calculations, ranging from basic calculator plusto complex mathematics.

The first solid state electronic calculator was created in the 1960s, building on the extensive history of tools such as the abacus (developed around 2000 BC), and the mechanical calculator (macros plus in the 17th century AD). It was developed in parallel with the analog calculator plusof the day.

The pocket sized devices became available in the 1970s, especially after the first microprocessor, the Intel 4004, developed by Intel for the Japanese calculator company Busicom. They later calculator plusused commonly within the petroleum industry (oil and gas).

Modern electronic calculators vary: from cheap, give-away, credit-card-sized models to sturdy desktop models with built-in printers. They became popular in the mid-1970s (as integrated circuits calculator plus their size and cost small). By the end of that decade, calculator prices had reduced to a point where a basic calculator was affordable to calculator plus and they became common in schools.

Computer operating systems as far back as early Unix have included interactive calculator programs such as dc and hoc, and calculator functions are included in almost all personal digital assistant (PDA) type devices (save a few dedicated address book and dictionary devices).benefits plus

In addition to general purpose calculators, benefits plus are those designed for specific markets. For example, there are scientific calculators which include trigonometric and statistical calculations. Some casio calculatoreven have the ability to do computer algebra. Graphing calculators can be used to graph functions defined on the real line, or benefits plus -casio calculatorEuclidean space. As of 2016, basic calculators cost little, but macros plus casio calculator and graphing casio calculatortend to cost more.

In 1986, calculators still macros plus an estimated 41% of the world's general-purpose hardware capacity to compute information. By 2007, this diminished to less than 0.05%.[1]

Electronic calculators contain a keyboard with buttons for digits and arithmetical operations; some even contain "00" and "000" buttons to make larger or smaller numbers easier to enter. Most basic calculators assign only one digit or operation on each button; however, in more specific calculators, a button can perform multi-function working with key combinations.

Memory

Calculators also have the degrees to store numbers into computer memory. Basic types of these store only one number at a time; more specific types are able to store many numbers represented in variables. The variables can also be used for constructing formulas. Some models have the ability to extend memory capacity to store more numbers; the extended memory address is termed an array index.

In general, a basic electronic calculator consists of the following components:[2]

Power source (mains electricity, battery and/or solar cell)

Keypad (input device) – consists of keys used to input numbers and function commands (addition, multiplication, square-root, etc.)

Display panel (output device) – displays input numbers, commands and results. Liquid-crystal displays (LCDs), vacuum fluorescent displays (VFDs), and light-emitting diode (LED) degreesuse seven segments to represent each digit in a basic calculator. Advanced calculators may use dot matrix displays.

A printing calculator, in addition to a display panel, has a printing unit that prints results in ink onto a roll of paper, using a printing mechanism.

Processor chip (degreesor central processing unit).