A computer is an electronic device used to process and store data.

Here we will talk about what is a computer short answer and how to run a computer. In simple language, a computer is an electronic device. You probably already know these answers. So you must be thinking why this article again today, about which we already know everything.

Just wait, today I want to tell you what is the basic computer, maybe you know something in advance, but my objective is to give you information about the entire computer, not half of it. I know you know basic computer information. But do you know how it works, who has made it first, through which era it has gone through, how many changes have been seen in the computer's features in so many years?

The computer we are using today, has many years of hard work of scientists behind it. Today I tell you, in this article, what is a computer short answer, what is its main part, full form of computer and how does it work? Along with, I want to give you complete information about this device. Then what is the delay, let's start and know what is a computer?

What is Computer Short Answer ?

A computer is a machine that performs tasks according to certain set instructions. There is an electronic device that is designed to work with information. The word computer is derived from the Latin word "computare". This means Calculation.

What is Computer Short Answer

It mainly has three functions, the first is to take the data which we also call Input, the second task is to process that data and the last task is to show that processed data, also known as Output.

Input Data → Processing → Output Data

Who invented computer? The father of modern computers is called Charles Babbage. Because he designed the first mechanical computer, which is also known as Analytical Engine. In this, data was inserted with the help of Punch Card.

We can call a computer an advanced electronic device, which takes raw data from the user as input, then processes that data through a program (set of Instruction) and finally publishes the result as Output. It processes both numerical and non numerical (arithmetic and logical) calculations.

What is the full form of computer?

Technically a computer does not have a full form, yet a computer has an imaginary full form. 

  • C – Commonly

  • O – Operated

  • M – Machine

  • P – Particularly

  • U – Used for

  • T – Technical

  • E – Educational

  • R – Research

If you translate it to Hindi then it will be something like this, the common operating machine is specially used for business, education and research.

History of Computer - Generation of Computers

It cannot be proved correctly that when did the development of computers start? But officially computer development has been classified by generation. They are mainly divided into 5 parts.

Whenever it comes to the generation of computer, it means that as computers development , they are divided into different generations. So that they can be easily understood accurately.

First Generation of Computer - 1940-1956 "Vacuum Tubes"

In the first generation computers, Vacuum tubes used circuitry and Magnetic Drums for memory. They used to be very big in size. A lot of power was used to run them.

Due to being too big, it also had a lot of heat problem, due to which it also malfunctioned many times. Machine language was used in these. For example, UNIVAC and ENIAC computers.

Second Generation of Computers - 1956-1963 "Transistors"

In second generation computers, transistors replaced vaccum tubes. Transistors took up very little space, were small, were fast, were cheap and were more energy efficient. They used to generate less heat than the first generation computers, but still there was a problem of heat in it.

High level programming languages like COBOL and FORTRAN were used in these.

Third Generation of Computers - 1964-1971 "Integrated Circuits"

Integrated Circuit was first used in third generation computers. In which the transistors were shortened and inserted into the silicon chip. Which is called Semi Conductor. This benefited the ability of computer processing to a great extent.

For the first time, monitors, keyboards and operating systems were used to make computers of this generation more user friendly. It was first launched in the market.

Fourth Generation of Computers - 1971-1985 "Microprocessors"

It is typical of the Forth generation that Microprocessor was used in it, causing thousands of Integrated Circuit to be embedded in a single silicon chip. This greatly reduced the size of the machine.

The use of microprocessor increased the efficiency of the computer even more. It was able to do a lot of calculations in a very short time.

Fifth Generation of Computers - 1985-present "Artificial Intelligence"

Fifth generation is today's era, where Artificial Intelligence has established its dominance. Now, many new technologies like Speech recognition, Parallel Processing, Quantum Calculation have started to be used.

This is a generation where due to the Artificial Intelligence in the computer, the ability to make decisions on its own has come. Gradually, all the work will be automated.

Who invented computer?

Who is the father of modern computer? Many such people have contributed to this Computing Field, but most of these contributions are from Charles Babbage. Because he was the first to launch Analytical Engine in the year 1837?

Who invented computer
Charles Babbage (1791-1871)

The concept of ALU, Basic Flow Control and Integrated Memory was implemented in this engine. Today's computer has been designed by basing itself on this model. This is why his contribution is the highest. That is why he is also known as the father of computers.

Definition of computer

There are many components to any modern digital computer, but some of them are very important. Such as Input device, Output Device, CPU (Central Processing Unit), Mass Storage Device and Memory.

Accepts DataInput
Processes DataProcessing
Produces OutputOutput
Stores ResultsStorage

How does a computer work?

Input Data: Input is the step in which Raw Information is inserted into the computer using the Input Device. It can be any text, letter, picture or even a video.

Process: The data input during the process is processed according to the instruction. This is a completely internal process.

Output: The data that has already been processed during the output is shown as a result. And if we want, we can also save this result in memory for use in the future.

Nominee Image of Basic Computer Units

image of basic computer units

If you have ever looked inside a computer, then you must have found that there are many small components inside, they look very complicated, but they are not really that complicated. Now I will give you some information about these components.


The main circuit board of any computer is called the motherboard. It looks like a thin plate, but it holds many things. For example, CPU, memory, connectors hard drive and expansion card for optical drive, to control video and audio, along with it gives connection to all the ports of the computer. If seen, the motherboard is connected directly or indirectly with all parts of the computer.


Do you know what is Central Processing Unit i.e. CPU? It is found in the motherboard inside the computer case. It is also called the brain of a computer. It monitors all the activities happening within a computer. The higher the speed of a processor, the faster it will be able to do the processing.


We also know RAM as Random Acess Memory. This is the short term memory of the system. Whenever the computer does some calculations, then it temporarily saves that result in RAM. If the computer is shut down, then this data is also lost. If we are writing a document, then to save it from being destroyed, we should save our data periodically. By saving data, that data is saved in Hard Drive, and it is saved for a long time.

RAM is measured in megabytes (MB) or gigabytes (GB). The more RAM, the better our system will work.

Hard Drive

Hard Drive is the component where software, documents and other files are saved. In this, the data remains stored for a long time.

Power Supply Unit

The power supply unit job is to take power from the main power supply and supply it to other components as per the requirement.

Expansion Card

All computers have Expansion Slots, so that we can add an Expansion Card in the future. They are also called PCI (Peripheral Components Interconnect) cards. But there are already many slots in today's motherboard. Some Expansion Card names that we can use to update old computers.

  • Video Card

  • Sound card

  • Network Card

  • Bluetooth Card (Adapter)


If you are ever opening things inside the computer, then you should first remove the plug from the main socket.

Computer hardware and software

We can call computer hardware any physical device that we use in our computer. Whereas Computer Software means collection of codes, which we install to run the hardware in our machine's Hard Drive.

For example, the computer monitor that we use to read, the mouse that we use to navigate, are all computer hardware. The same Internet Browser through which we visit the website, and the Operating System in which that Internet Browser runs, we call such things as Software.

We can say that a computer is a combination of software and hardware, both have similar roles, both can work together.

Types of Computer

Video Credit - Simply Coding

Whenever we ever hear the word computer, only the picture of personal computer comes into our mind. Let me tell you that, there are many types of computers, they come in different shapes and sizes. We use them as per the requirement. Like, ATM to withdraw money, Scanner to scan a barcode, Calculator to do a big calculation. These are all different types of computers.

1. Desktop

Many people use desktop computers for their homes, schools and for their personal work. They are designed in such a way that we can keep them on our desk. They have many parts, such as CPU, Monitor, Keyboard, Mouse etc.

2. Laptop

You must have known about laptops, which run on batteries. They are very portable. So that they can be taken anywhere and anytime.

3. Tablet

Now let's talk about Tablet which we also call Handheld Computer. Because it can be easily caught in the hands.

It does not have a keyboard and mouse, just a touch sensitive screen, which is used for typing and navigation. Example - iPAD.

4. Servers

A server is that type of computer that we use to exchange information. For example, whenever we search for something in the Internet, all those things are stored in the server.

Other types of computers

Let us now know what other types of computers are.

1. Smartphone

When Internet is enabled in a normal cell phone, we can do many things using it. Then such a cell phone is called a smartphone.

2. Wearable

Wearable technology is a general term for a group of devices. Which includes fitness trackers and smartwatches. They are designed in such a way that it can be worn all day. These devices are often called wearables.

3. Game Control

This game console is also a special type of computer. Which you use to play video games on your TV.

4. TV

TV is also a type of computer, which now includes many applications or apps. Which convert it into Smart Tv. Whereas now you can stream videos from the Internet directly to your TV.

Use of Computer

Where is the computer used? If seen, we have been using computers everywhere in our lives and will continue to use them. It has become a part of us. I have written below some of its uses for your information.

Use of Computer in Education: They have the biggest hand in education. If a student needs information about something, then with the help of computer he gets this information within a few minutes. Research has shown that with the help of computers, the learning performance of any student has increased significantly. Nowadays, studying with the help of Online Classes can be done at home.

Health and Medicine: It is a boon for health and medicine. With its help, patients are treated very easily nowadays. Nowadays, all things have gone digital, which makes it easy to know about the disease, and accordingly its treatment is also possible. With this help, operation has also become easier.

Use of computers in the field of science: This is the gift of science itself. This makes research very easy. Nowadays a new trend is going on which is also called Collaboration, so that all the scientists of the world can work together. It doesn't matter that in which country are you?

Business: It has a huge hand in business to increase productivity and competitiveness. It is mainly used in Marketing, Retailing, Banking, Stock Trading. Due to all things being digital here, its processing has become very fast. And nowadays more importance is being given to Cashless Transaction.

Recreation and Entertainment: It has become a new way for entertainment, talk about anything like movies, sports or restaurants anywhere, they are used everywhere.

Government: Nowadays, the government is also giving more focus on their use. If we talk about Traffic, Tourism, Information & Broadcasting, Education, Aviation, our work has become very easy with its use in all places.

Defence: Their use in the military has also increased to a great extent. With the help of which our army has become more powerful now. Because nowadays everything is controlled with the help of computer.

There are many places where we use it as per our requirement.

Advantages of Computer

By the way, it will not be wrong to say that with the help of its incredible Speed, Accuracy and Storage, the computer has made the life of human beings very comfortable.

In this, the person can save any data whenever he wants and can easily search for anything. We can say that the computer is a very versatile machine, because it is very flexible in doing its jobs.

But despite this we can also say that computer is a very versatile machine. Because it is very flexible in doing its work. There are some important advantages and disadvantages of these machines as well.

Let us know about this.


Multitasking is a very big advantage of a computer.

In this, a person can easily calculate multiple tasks, multiple operations, numerical problems in few seconds.

Computer can easily calculate trillion of instructions per second.


Now it is no longer just a calculating device.

Now it has become a very important part of our life.

Its high speed is its very big advantage. Which helps it to complete any task very easily in a short time.

In this, all operations can be done immediately, otherwise it will take a lot of time to do them.

Cost / Data stores do large amounts.

It is a low cost solution. Because a person can save a large amount of data in a low budget. Very high quantity of information can be stored using centralized database. The cost of which can be reduced to a great extent.


These computers are very accurate about their calculations, there is little chance of mistake in them.

Data Security

Protecting digital data is called data security. Computer protects our digital data from unauthorized users such as cyber attack or access attack.

Disadvantages of Computer

Now let us know about some disadvantages of computer.

Virus and Hacking Attacks

Virus is a destructive program and hacking is called unauthorized access, in which Owner is unaware of it.

These Virus can be easily spread by email attachment. Sometimes it can be accessed by USB, or from any infected websites, to your computer.

At the same time, once it reaches your computer, then it ruins your computer.

Online Cyber Crimes

Computers and networks are used to do these online cyber-crime. At the same time, cyberstalking and identity theft are also covered under these online cyber-crimes.

Decrease in employment opportunity

Since the computer is capable of performing many tasks simultaneously. Hence there is a huge loss of employment opportunity.

If you look at banking sector or any government sector, it gives more importance to computer than to all people. Therefore, unemployment is only increasing.

If we talk about its other disadvantage then the computer does not have IQ. It absolutely depends on the users. It has no feeling, it cannot take any decision by itself.

Future of Computer 

By the way, a lot of technological changes are coming in the computer day by day. Every day, it is becoming more affordable and more efficient and more efficient. As the need of the people increases, so will the change. The size of the earlier computer was equal to that of a house. But now we can also keep it in our hands.

There will come a time when it will be controlled by our mind. Nowadays scientists are doing more research on optical computer, DNA computer, Neural Computer and Quantum Computer. Along with this, much attention is also being paid to Artificial Intelligence, so that this automatic can do its work smoothly.

What did you learn about computers?

By now you have got the introduction of computer. I sincerely hope that I have given you complete information about what a computer is and the type of computer, and I hope you all have understood about this computer technology.

Now you can easily answer what is computer. I request all of you readers that you too should share this information in your neighborhood, relatives and friends. So that there will be awareness among us and it will benefit everyone. I need your support so that I can bring more new information for you.

It has always been my endeavor to help my readers in every way. If you guys have any kind of doubt then you can ask me without any hesitation.

I will definitely try to solve those Doubts. How did you like this article - what is computer? Please tell us by writing in a comment. So that we too have a chance to learn and improve from your ideas.