**What is a calculator?** Whenever we have to do a big calculation, then we have more memory than the calculator. But did you think this is what the calculator is after all and how it completes all the mathematical calculations so quickly?

Are there different types of calculators and how does this work? If you have ever had these questions in your mind and you do not have much information about the calculator and how it works, then there is nothing to worry about if you do not get it on the book or the internet, because you are the subject of this calculator I will only know in

We often look at the speciality of small appliances, which means that we do not give much importance to the equipment that is small to the palms of our hands.

That’s exactly what happens with our calculating device. Yes, friends are so small to look at this but they make very big sums in-jokes. Let’s talk about calculation, then we can do the very small calculation in our brain, but there is also a limit, and after that, we are in trouble.

That’s why we have been making such devices from the beginning that humans can help us in the calculation. Now on the matter, these calculators are now used to run from different devices as an application in our SmartPhones. But even though it sounds awkward for you in a little bit of hearing, but calculators have to undergo many evolutionary steps, by nowhere we are seeing and using this form of this device.

## What is a Calculator?

The calculator is an electronic hardware device or software that is capable of performing very mathematical calculations like addition, multiplication, subtraction, and division. Casio Computer Company first launched commercialized electronic calculator in 1957. Since then, there have been significant changes in the sizes, features and functions of Calculators.

These changes were made by the manufacturers according to the needs and use of the people. They even started making computers, smartphones and tablets for them in their operating systems. Many operating systems such as Windows, iOS, Android, Mac have their own inbuild Calculator application.

**The calculator r comes from the Latin word calculate, which means counting the use of stones.**

These calculators used to do so that they have become a part of our lives. The cost of these calculators depends on their features, application and size. It is very important to learn how to use it in the present time.

That’s because in the present time there is a great need of time and by making our calculation easy, it saves us a lot of time. Also, the demand for Scientific Calculators has increased greatly because of the use of it as there are so many functions in it that the Engineers, Architects, Scientists need to do their work.

## History of calculator

There was a time when these numbers did not exist. Humans used to use the fingers of their hands and feet to count devices. But this was not enough because it became impossible for us to calculate when the number came up. Then our civilization invented the abacus, which is the oldest calculating tool except for the fingers.

Even though they are not used so much, Abacus was the only device that started the calculating machine in human civilization. Then slowly there was a lot of change in this calculating machine and in the end, it became a calculator, which we used to calculate for our calculation.

But it did not happen very soon, but it took several years to happen, about which we are going to know ahead. Next, you will learn about the most important Calculation machines by their manufacturer and year.

**1623: FIRST ADDING MACHINE**

**Device Name: Calculating Clock**

**Inventor: Wilhelm Schickard**

These “**Calculating Clock**” of Schickard were engaged in multiplying devices, such as a mechanism, to record intermediate results, there was also a 6-digit decimal adding a device.

**1773: FIRST FUNCTIONAL Calculator**

**Inventor: Philip Matthus Hahn**

Hahn had a feeling that he would do a machine design which would help him calculate the clock parameters and planetarium.

So he based his calculator on the “Stepped Reckoner” calculating machine which was developed by Gottfried Wilhelm Leibniz in 1672. In Hahn’s Calculator, there was a set of twelve drums which was in a circular arrangement and used to crank it to activate, which was misty in the axis of the drums.

So he based his calculator on the “Stepped Reckoner” calculating machine which was developed by Gottfried Wilhelm Leibniz in 1672. In Hahn’s Calculator, there was a set of twelve drums which was in a circular arrangement and used to crank it to activate, which was misty in the axis of the drums.

**1820: First commercially produced mechanical calculator**

**Device Name: Arithmometer**

**Inventor: Charles Xavier Thomas de Colmar**

This arithmometer was the first calculating machine that was commercially very successful as it could have four basic operations – which are addition, subtraction, multiplication and division.

**1954: FIRST ALL-TRANSISTOR Calculator**

**Device Name: IBM 608**

**Inventor: IBM**

This IBM 608 was the first calculating machine that used to replace solid-state transistors for vacuum tubes. The main memory of this machine could store up to 40 nine-digit numbers and operated about 4,500 additions per second. In this IBM 608, more than 3,000 germanium transistors were used.

**1961: FIRST ALL-ELECTRONIC DESKTOP CALCULATOR**

**Device Name: ANITA MK-8**

**Inventor: Bell Punch**

In 1956, Bell Punch Co. Who was a company of Great Britain, instead of manufacturing ticket punches, he thought of separating something and made a commercial electronic desktop calculator, which he kept codenamed ANITA There were about 170 cold cathode vacuum tubes, a Dekatron decade counter tube and Numicator display/indicator tubes in this machine?

**1967: FIRST HANDHELD Calculator**

**Device Name: Cal Tech**

**Inventor: Texas Instruments (TI)**

According to the Texas Instruments website, “Cal Tech” was a codename and named it the device that was being developed at that time, and which was commercially released in 1970. This 45-ounce Calculator had a small keyboard with 18 keys and a visual output that could display up to 12 decimal digits.

**1971: Firstly TRULY POCKET-SIZED ELECTRONIC CALCULATOR which uses LED DISPLAY**

**Device Name: Busicom LE-120A “HANDY”**

**Inventor: Busicom**

Busicom LE-120A, also known as HANDY, was the first handheld calculator to use a “Calculator on a chip” integrated circuit. Because this calculator was quite expensive at that time, so a wrist strap was attached to its base in which to prevent it from falling somewhere.

**1974: FIRST HANDHELD **PROGRAMMABLE** CALCULATOR**

**Device Name: HP-65**

**Inventor: Hewlett-Packard**

It was first produced by Hewlett-Packard at the end of a “Personal Computer,” These calculators used to allow users either to purchase programs, to write pre-programmed cards or to write programs themselves, which were about 100 lines long and were recorded in blank cards.

The calculator costs $ 795 when it was launched in 1974. In the year 1975, when the first joint US-Soviet space flight took off, it became the first handheld calculator to be sent in the outer space.

**1985: FIRST GRAPHING Calculator**

**Device Name: Casio FX-7000G**

**Inventor: Casio**

The Casio Fx-7000G was developed with 422 bytes of memory and it could store around 10 programs in their 10 program slots. Right now graphing calculators such as TI-83 have the same display format of Fx-7000G.

**2003: FIRST GRAPHING Calculator with TOUCH FUNCTIONALITY**

**Device Name: Sharp EL-9650**

**Inventor: Sharp**

When people thought about touch devices and used their fingers, then Sharp had some other idea and in which he started the first stylus-based graphing calculator.

The EL-9650 had a slideshow function that allows teachers to teach pre-programmed lessons and formulas in Calculator.

**2010: FIRST COLOR GRAPHING Calculator**

**Device Name: Casio PRIZM**

**Inventor: Casio**

When all mobile devices went into full-colour screens in the early 2000s, then it took some time to graphing calculators to catch up. Casio’s PRIZM Calculator, which was launched in late 2010 with its advanced, 216 × 384 resolution, full-colour display.

This PRIZM allowed the students to create graphs above the image, allowing them to understand the real-world applications of their work. And better start using this Graphic Calculator.

### What happens inside the calculator?

If you had opened a 19th-century calculator, then you would have found many small parts within it: in which precision gears, axles, rods, and levers, which have been greased well, and that Clicking and whirl are also happening when you type a number then. But the thing about modern calculator is different because in it you will find many small tools. Let’s know about them:

**1. Input:** Keyboard: In which there are 40 tiny plastic keys, under which there is a rubber membrane and a touch-sensitive circuit.

**2. Processor**: A microchip which does all the hard work. It does all those things that used to do gears in the earlier calculator.

**3. Output:** A liquid crystal display (LCD) that lets you show numbers when you do something and show the result of your calculation too.

**4. Power source:** A long-life battery that is often a “button” cell that lasts for many years. Some calculators also use a solar cell which provides free power in the daylight.

#### What happens when you press any key?

When a key is pressed down, there are a lot of things in your calculator, let’s know about them.

**1**. As soon as you press hard plastic, you press the rubber membrane down.

**2.** This rubber button pushes right down to which an electrical contact is formed, between the two layers, the keyboard circuit detects and also detects this thing as a keyboard circuit.

**3**. This processor chip figures out which key is pressed.

**4.** A circuit activates in this processor chip, to the appropriate segments in the display that corresponds to the numbers that you press.

**5**. If you have pressed too many numbers, then the processor chip will show them in the display – and this will do so until you press any operations keys (such as +, -, ×, ÷) There is no other operation. If you have + key pressed, then the calculator will store that number in a small memory called a register. Now it will wipe out the display and wait for you to know when you will be entering the second number. As soon as you enter the second number.

then the processor chip will digitize it by digit-by-digit and store it in another register. Finally, when you press the = key, then the calculator adds both content and displays in the result. This was the basic working of a calculator.

Types of Calculator

If you look in internet or in the market then you will find many types of calculators. All these calculators have different jobs and they use different age groups. So let’s know about the different types of these calculators.

Basic Calculator

What can this do?

- Add
- Subtract
- Multiply
- Divide
- Percentages
- Square roots
- Simple memory function
- Suitable For:
- Primary school age children
- They are used in general houses
- Scientific Calculator
- What can this do?
- Combinations
- Coordinate conversion
- Degrees
- Degrees / minutes / seconds
- Exponential Regression
- Exponents
- Expression editing
- Factorials
- FIX / SCI / NORM
- Fractions
- Gradians
- Hyperbolics
- Inverse regression
- Linear regression
- Logarithm
- Logarithmic regression
- Negative Indicator
- Permutations
- Power retraceion
- Quadratic retrograde
- Radians
- Random numbers
- Reciprocals
- Roots & powers
- Standard deviation
- Table of a function
- Trigonometric (SIN / COS / TAN)
- Multi-replay
- Which is suitable for:
- For Secondary School Students
- Graphics Calculator
- What can this do?
- Angle measurements (DEG / RAD / GRA)
- Bar chart
- Combinations (nCr) & permutations (nPr)
- Complex numbers
- Confidence intervals (Z & T)
- DEC / HEX / BIN / OCT conversions
- Distribution Tests (Z, t, chi, ANOVA)
- Distributions (NORM / T / CHI / Fbinomial / poisson)
- Dynamic graphing
- FIX / SCI / NORM
- Fractions
- Graphing
- Hyperbolic / Inverse Hyperbolic
- Inequality
- Logic Operations
- No. of Regression Types 10
- Numeric Equation Solver
- Parametric
- Parenthesis levels 26
- Pie chart
- Polar
- Random numbers
- Rectangular
- Roots & powers
- Single and double variable
- Statistical calculations
- TVM – Financial Calculations
- Which is suitable for:

**Correct usage of calculators**

Calculators do not just have to buy anything. If it is not used properly then it is considered to be better than not using it. Calculators were made so that they could reduce our complexity and make us more efficient. Therefore, using Efficiency of Calculators not only saves us time but also provides us with more accurate results.

Things to know

1. It is very important to know about all the symbols of the calculator.

2. Using Brackets, it tells the calculator what to do before calculation.

3. The calculation at a time saves you much time and reduces the chances of mistake.

4. If you do not know all the buttons then you should read the calculator user manual once.

## What are the Uses of Calculator?

Using a calculator, we can do a lot of tasks like adding, multiplying, dividing and subtracting numbers easily. For example, calculators used to calculate the homework, income and expense of maths, and are used in a lot of tasks.

Physicists and engineers use the Scientific Calculators, which are more advanced than the standard Calculators. There are even more functions in this calculator, which are needed for the scientific calculation.

Accountants and other financial professionals use special calculators, called financial calculators, which can easily calculate interest in loans and savings and can also make currency conversions as well.

Many virtual calculators are also available online. Generally, an online calculator has some specific purpose, such as calculating a number of calories during burnt exercise, to determine the date of a pregnant woman, the estimated grade point average of a student. When we use these online calculators, then users have to type in some information input fields and finally have to press Calculate to see the result.

### Calculator Advantages:

By the way, calculators are much more advantages than disadvantages. Calculators are allowed in schools and colleges to reduce the complexity of mathematical problems and to understand subjects quickly and quickly. Accurate counting and time to save time, they have the highest role.

Problems with more numbers can be easily solved, repeatedly without any difficulty. Now, in most electronic application devices, the option of Calculator is Mehsud. In Scientific Calculator, the option of a wide range of conversion data is available. Together, online calculators are being used very much by all users.

### Calculator Disadvantages:

Using Calculators, people have to use Calculators to do small calculation too.

It also reduces the desire to calculate some maths in younger children and they see calculators a better option.

The calculator has a very big hand behind not learning basic calculation skills.

Assuming that calculators are widely used for large calculations and it is appropriate but should use our brains for easy calculation, which makes the brain sharper and also increases the problem-solving ability.

### The future of Calculators:

There have been considerable changes in the calculations and technologies of calculators over time. Just as people need them, in the same way, manufacturers do not even make them change their shape and use them for people’s use. When Smartphones were invented a few years back, these calculators were given the form of an application and inserted into that device itself.

Therefore, to maintain its relevancy in the market, more sophisticated calculators were designed to make people remain attached to them. In this way, the calculations of the calculators ahead of me are very bright, but for this, they have to look better than the calculators of their smartphone, have to perform better, and have to improve the complexity of the people more effectively.

For Graphics Students

- For architects
- Financial Calculator

**What can this do?**

- Amortization
- Cash flow (Investment Appraisal)
- Compound Interest Calculations
- Conversions
- Cost sell margin and day calculations
- Exponential Regression
- Full scientific functions
- Linear regression
- Logarithmic regression
- Multi-replay
- Quadratic retrograde
- Simple and compound interest
- Time-Value-Money calculations
- For whom it is appropriate:

Anyone who belongs to financial management

### Frequently Asked Questions (Frequently Asked Questions)

**1. How to paste photos in Smart Hide Calculator?**

For this you have to first install Smart Hide Calculator from Google Playstore. After that you will need to set a password by opening that app. After that you can add any photos to it. So these photos can be opened only after entering the password.

**What are the names of the part 2calculator?**

The main components of the calculator are keyboard, microchip, LCD, battery

**How does Fx 991 calculator stop?**

To stop the calculator of Fx 991, you have to follow a few steps.

After turning on the calculator, click Shift, and then click AC.

**How is Calculator built?**

The subject has been written in the above article.

**Can Calculator Use In Paper In Account In Haryana?**

It is allowed to use a calculator in some exams. In particular, the use of a calculator in CA exam is allowed.

**6 Steps to Open Calculator in Windows?**

In order to open the Calculator in Windows, you have to first click on the Start button and then type the calculator in the search button. With this, you can open Calculator.

7 P**roblems in the scientific calculator?**

A very complex operation can be done in the Scientific Calculator. There are many problems like this in decimal error.

**8Home Calculator condenser metal detector?**

Home Calculator can be used to make a metal detector. For this, you have to use an AM radio, small tape and a calculator.

**9**. **How to use a Calculator?**

You can easily use the calculator to calculate the user manual of the Calculator.

**10 Calculator’s old memory delete method?**

If you want to delete the old memory of the scientific calculator then you have to follow some steps.

- Press Shift + Mode, after that you will see these three things
- MCL (press 1) Mode (press 2) All (press3)
- To clear memory: Press 1 to clear memory
- To clear mode: Press 2
- To clear all: Press 3 it shows Reset all now press == to reset all

**11Calculator How to open?**

You will need to press the Start button to open the calculator. After this you have to type the calculator in the search tab, this lets you open the calculator.

### Resolution

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