What is Computer, its Types, and what Features are 2022

Let us know what is a computer? A computer is a machine that processes instructions to calculate data and store and manage information. Computers are made up of hardware and software. The word computer is derived from the Latin word “computer”. It means to calculate or to calculate.

It mainly has three functions. Taking the first data which we also call Input. The second task is to process that data and then the task is to show that processed data which is also called Output.

Charles Babbage is said to be the father of the modern computer. Because he was the first to design the mechanical computer, which is also known as the Analytical Engine. In this, data was inserted with the help of a punch card.

So we can call a computer such an advanced electronic device that takes raw data from the user as input. Then processes that data through a program (set of instructions) and publishes the final result as Output. It processes both numerical and non-numerical (arithmetic and logical) calculations. Hope you have liked what is called a computer.

What is the Full Form of a Computer?

Technically there is no full form of computer. The full form of computer is “computer”, yet there is an imaginary full form of computer,

  • C – Commonly
  • O – Operated
  • M – Machine
  • P – Particularly
  • U – Used for
  • T – Technical and
  • E – Educational
  • R – Research

If you translate it into Hindi then something like this will happen, a common operating machine specially used for business, education, and research.

How do Computers Run?

For some people, using a computer can be difficult to understand. This section will help you to understand how to operate your computer smoothly.

You must be wondering how can you use a keyboard and mouse at the same time? Well, it’s not that complicated! Here are some instructions on how to do it:

  1. Move the mouse pointer over the icon or letter you want to click.
  2. Press and hold the left mouse button.
  3. Drag the pointer to where you want to click.
  4. Release the left mouse button when you reach the desired destination.

History of Computer

Along with knowing what a computer is, it is also important to understand its history. It cannot be properly proved that since when the development of computers started. But officially the development of computers has been classified according to the generation. These are mainly divided into 5 parts.

What is Computer, its Types, and what Features are 2022

When it comes to the generation of the computer, it means that the generations of the computer in Hindi. As computers developed, they were divided into different generations so that it is easy to understand them properly.

First Generation of Computers – 1940-1956 “Vacuum Tubes”

The first-generation computers used vacuum tubes for circuitry and magnetic drums for memory. They used to be quite big in size. A lot of power was used to run them.

Being very large, it also had a lot of heart problems, due to which it used to malfunction 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 vacuum tubes. Transistors took up very little space, were smaller, were faster, were cheaper, and were more energy efficient. They used to generate less heat than the first generation computers but still, but there was still a problem with heat in it.

In this, high-level programming languages ​​like COBOL and FORTRAN were used.

Third Generation of Computers – 1964-1971 “Integrated Circuits”

An integrated Circuit was used for the first time in third-generation computers. In which the transistors were small and inserted inside the silicon chip, which is called Semi-Conductor. It benefited from this that the processing capacity of the computer increased to a great extent.

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

Fourth Generation of Computers – 1971-1985 “Microprocessors”

The specialty of the fourth generation is that Microprocessor was used in it. Due to this thousands of Integrated Circuits were embedded in a single silicon chip. This made it very easy to reduce the size of the machine.

The use of microprocessors increased the efficiency of the computer even more. This very work was able to do very big calculations in Samaya.

Fifth Generation of Computers – 1985-present “Artificial Intelligence”

The fifth generation is of today’s era where Artificial Intelligence has established its dominance. Now many advanced techniques like new technology like Speech recognition, Parallel Processing, and Quantum Calculation are coming into use.

This is a generation where due to the artificial intelligence of the computer, the ability to take decisions on its own has come. Gradually, all its work will be automated.

Who Invented the Computer?

Father Of Computer Charles Babbage Who is called the father of the modern computer? In this way, many people have contributed to this computing field. But out of all this, Charles Babbage contributes more. Because he was the first to come out with the Analytical Engine in 1837.

The concept of ALU, Basic Flow Control, and Integrated Memory was implemented in this engine. Based on this model, today’s computer was designed. That is why his contribution is the highest. That is why he is also known as the father of computers.

Definition of Computer

A computer is an electronic device that manipulates data according to a list of instructions called a program.

The term computer has been in use since the early 17th century when it referred to a person performing calculations or operating a calculating machine. The term continued to refer to these workers through the 19th century and into the 20th century until it was later applied to “a machine that automatically calculates”.

Computer Work

Input (Data): Input is the step in which raw information is inserted into the computer using an input device. It can be a letter, a picture, or even a video.

Process: The data inputted 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 the result. And if we want, we can save this result and keep it in memory for future use.

Labeled Diagram of Basic Units of Computer

If you have ever seen inside which computer case, then you must have found that there are many small components inside, they look very complicated, but they are not that complicated in reality. Now I will give you some information about these components.

What is Computer, its Types, and what Features


The main circuit board of any computer is called Motherboard. It looks like a thin plate but it is holding many things. Such as CPU, memory, connectors for hard drives and optical drives, expansion cards to control video and audio, as well as connection to all the ports of the computer. If seen, the motherboard is a direct or indirect connection with all the parts of the computer.


Do you know what is Central Processing Unit ie CPU? This is also called. It is found in the motherboard inside the computer case. It is also called the brain of the computer. It is keeping an eye on all the activities inside a computer. The higher the speed of a processor, the sooner it will be able to do the processing.


We also know RAM as Random Access Memory. This is the short-term memory of the system. Whenever the computer does some calculations, it temporarily saves that result in RAM. If the computer is turned off, this data is also lost. If we are writing a document, then to avoid it being destroyed, we should save our data in between. By saving, if the data is saved on the hard drive, then it can stay for a long time.

RAM is measured in megabytes (MB) or gigabytes (GB). The more RAM we have, the better it is for us.

Hard Drive

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

Power Supply Unit

The job of the power supply unit 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. These are also called PCI (Peripheral Components Interconnect) cards. But today’s motherboard has many slots already built in. Names of some expansion cards that we can use to update old computers.

  • Video Card
  • sound card
  • Network Card
  • Bluetooth Card (Adapter)

Computer Hardware and Software

We can call computer hardware any such physical device that we use in our computer, whereas computer software means the collection of codes that we install on the hard drive of our machine to run the hardware.

For example, the computer monitor that we use to navigate, and the mouse that we use to navigate, are all computer hardware. Wherein the Internet Browser from which we visit the website, and the Operating System in which that Internet Browser runs. We call such things software.

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

Type of Computer

A computer is a type of machine that people use to calculate information. Computers are often called the brains of the modern world because they are used in almost every industry and for many different purposes.

There are two types of computers, analog and digital. Analog computers require less power but require more time to process data, while digital computers require more power but less time to process data.

Whenever we ever hear the use of the word computer, then only the picture of a personal computer comes into our mind. Let me tell you, people, that there are many types of computers. Comes in various Shapes and Sizes. We use them as per the need, such as ATMs to withdraw money, Scanner to scan a barcode, and Calculators to do any big calculation. These are all different types of computers.


What is Computer, its Types, and what Features

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 desks. They have many parts like Monitor, Keyboard, Mouse, and Computer Case.


What is Computer, its Types, and what Features are 2022

You must have known about laptops that are battery-powered, they are very portable so they can be taken anywhere and anytime.


What is Computer, its Types, and what Features are 2022

Now let’s talk about the tablet, which we also call a handheld computer because it can be easily held in the hands.

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


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

Other Types of Computers

Let us now know what are other types of computers.

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

Wearable: Wearable is a general term for a group of technology devices – including fitness trackers and smartwatches – that are designed to be worn throughout the day. These devices are often called wearables.

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

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

Computer Access

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

Use of computers in the field of education: They have the biggest hand in education, if a student wants information about something, then this information becomes available to him within a few minutes, with the help of this. Research has shown that with the help of computers, the learning performance of any student has increased significantly. Nowadays, studying can be done with the help of online classes while sitting at home.

Health and Medicine: This is a boon for health and medicine. With the help of this, the treatment of patients is done very easily nowadays. Nowadays everything has become digital, due to which the disease is easily known and its treatment is also possible accordingly. This has also made operations 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 Collaboratory so that all the scientists of the world can work together, it does not matter from which country you are present in the country.

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

Recreation and Entertainment: It has become a new haven for entertainment, you talk about anything like movies, sports, or restaurants, 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, and Aviation, our work has become very easy due to their use in all places.

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

There are many places where we use it according to our needs.

Benefits of Computer

By the way, it would not be wrong at all to say that the computer has made the life of us human beings very easy with the help of its incredible speed, accuracy, and storage.

With this, people can save anything whenever they want and can search for anything easily. We can say that the computer is a very versatile machine because it is very flexible in doing its jobs.

But in spite of this, we can also say that the computer is a very versatile machine because it is very flexible in doing its work, while these machines also have some important advantages and disadvantages.

Let us know about them.


Multitasking is a great advantage of computers. In this, a person can easily calculate multiple tasks, multiple operations, and numerical problems in a few seconds. Computers can easily calculate trillions 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 great advantage is its high speed, which helps it to complete any task, that too in a very short time. In this, almost all the operations can be done immediately, otherwise, it would take a lot of time to do them.

Cost / Stores a Large Amount of Data

It is a low-cost solution. Because of this, a person can save a large amount of data on a low budget. Using a centralized database, a very high quantity of information can be stored, so that the cost can be earned to a great extent.


These computers are very accurate in their calculations, and the chances of making a mistake in them are negligible.

Data Security

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

Disadvantages of Computer

Now let us know about some disadvantages of computers.

Virus and Hacking Attacks

The virus is a destructive program and hacking is called that unauthorized access in which the owner does not know about you.

These Viruses can be easily spread through email attachments, sometimes even from USB, or they can be accessed to your computer from any infected websites.

Whereas once it reaches your computer then it ruins your computer.

Online Cyber ​​Crimes

Computers and networks are used to do these online cyber crimes. Whereas Cyberstalking and Identity theft also come under these online cyber-crimes.

Reduction in Employment Opportunity

Since the computer is capable of doing many tasks simultaneously, there is a huge loss of employment opportunities.

Therefore, from the banking sector to any governmental sector, you see that all computers are given more importance in the place of people. So unemployment is only increasing.

Talking about the second disadvantage, then it does not have IQ, it totally depends on the users, it has no feeling, and it cannot take any decision by itself.

Future of Computer

Computers are developing at an exponential rate. This is because of advances in artificial intelligence. In the future, computers will be able to do much more than just provide us with information and take care of our basic needs. They will be able to perform tasks that are currently performed by humans, such as driving a car or writing articles.

Many changes will be seen in the future of computers. It will be more comfortable and natural to use. It will be able to process the data very fast. Nowadays scientists are doing more research on Optical computers, DNA computers, neural computers, and Quantum computers. Along with this, a lot of attention is also being paid to Artificial Intelligence so that it can do its work smoothly on its own.

What did you Learn Today?

By now you must have got the introduction to computers in Hindi. I have full hope that I have given you complete information about what is computer and the type of computer and I hope you have understood about this computer technology.

Easily now you can feel free to answer what is a computer. I request all of you readers that you also share this information with your neighbors, relatives, your friends so that there will be awareness among us and everyone will benefit a lot from it. I need your cooperation so that I can pass on more new information to you guys.

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