What Is the Internal Working of Calculators?

Thread starter student34
Start date Aug 19, 2012
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Calculators Work

In summary, calculators use a microprocessor to perform mathematical operations and a liquid crystal display to display numbers and symbols. They also use memory chips to store numbers and equations and are powered on and off by batteries. Maintaining accuracy is achieved through the use of mathematical algorithms and precision components.

Aug 19, 2012

student34

I can't imagine that every possible equation is preprogrammed. If that is not the case, then how do the calulators know the answers?

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Aug 19, 2012

Charmar

http://en.wikipedia.org/wiki/Calculator#Internal_working

1. How do calculators perform mathematical operations?

Calculators use a microprocessor, which is a small computer chip, to perform mathematical operations. The microprocessor contains a set of instructions that allow it to do basic arithmetic, such as addition, subtraction, multiplication, and division.

2. How do calculators display numbers and symbols?

Calculators use a liquid crystal display (LCD) to display numbers and symbols. The LCD consists of a layer of liquid crystal material sandwiched between two polarized glass plates. When an electric current is applied, the liquid crystals align to form numbers and symbols on the screen.

3. How do calculators store numbers and equations?

Calculators use memory chips, similar to those found in computers, to store numbers and equations. These chips can store large amounts of data, allowing calculators to perform complex calculations and store multiple equations.

4. How do calculators power on and off?

Most calculators use batteries as a power source. When turned on, the calculator sends a small current through the battery, which activates the microprocessor and allows the calculator to function. When turned off, the calculator stops sending the current, conserving battery life.

5. How do calculators maintain accuracy?

Calculators maintain accuracy through the use of mathematical algorithms and precision components. The microprocessor uses these algorithms to perform calculations with a high degree of accuracy, and the components, such as resistors and capacitors, are carefully selected and calibrated to ensure precise results.