What is computer

Let us know what is computer. A computer is a machine that can process data and perform calculations. The term computer refers to the hardware, software, and firmware used to process data.

What is a computer, in simple language, it is a machine that can process data and do calculations. The term “computer” refers to the hardware, software, and firmware used to process data. Computers have been in use since the early 20th century, but they became widespread with the advent of the personal computer in the 1980s.

Input Data →  Processing → Output Data

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 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. What is a computer and know from a little bed?

What is a computer called?

What is computer
What is computer

A computer is an electronic device that can be programmed to perform a set of arithmetic or logical operations automatically. This is the easiest answer to what is a computer.

Computers have three main components: input, processing, and output. Input is usually a keyboard and mouse. The processing component is usually in the form of a microprocessor or a central processing unit (CPU). The output is usually on a display screen, such as a monitor or television.

Computers have three main components: input, processing, and output. Input is usually a keyboard and mouse. The processing component is usually in the form of a microprocessor or a central processing unit (CPU). The output is usually on a display screen, such as a monitor or television.

How do computers work?

A computer is a device that is used to store, process and transmit data. They are used for anything from storing files and documents to sending emails.

Computers are electronic devices that can store and process data through the use of microchips. The first computer was invented in the 1940s by a team of scientists led by British mathematician Alan Turing. The computer was designed to calculate artillery tables for the British Army.

The word “computer” is derived from the word “calculate”, which means “to find out”. Computers have been around since 1938 when they were invented by the British mathematician Alan Turing.

computer and brain

Computers are becoming like the human brain every day. The human brain is an organ made up of billions of neurons and synapses. These neurons and synapses work together to process and store information. Computers are also made up of millions of transistors, which work together to process information similar to neurons in the human brain.

Research into how computers can be like the human brain could have many benefits for society. One potential benefit is that we may be able to use computers to help us understand how the human brain functions better than ever before. This could lead to a better understanding of neurological diseases as well as mental illnesses such as depression and anxiety.

What can computers do?

Computers are used in many ways. Computers are used for computing, storing and communicating information. Computers are also used for many other tasks.

A computer is a machine that can be programmed to automatically perform a sequence of arithmetic or logical operations using binary language and logic. Computers can be classified into three categories: personal computers, servers, and mainframes.

Personal computers are the most common type of computer because they are usually cheaper than servers or mainframes and they come with fewer technical support requirements than servers or mainframes.

Personal computers can be classified into two types: Desktop PCs and Laptop PCs. Desktop PCs have larger screens than laptop PCs, but they usually require more space because the screen is not built into the computer itself like laptop PCs do.

How to Choose the Best Computer for Me?

Choosing the best computer for yourself can be a daunting task. There are many factors to consider: your budget, the type of work you do, and how often you travel. In this article, we will discuss some of the most important aspects that should be considered while choosing a new laptop or desktop computer.

If you are looking for a laptop, there are many things to consider like screen size, performance, weight and battery life. If you need more power or flexibility than a laptop it’s time to look at desktops.

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 in Hindi then something like this will happen, 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 that how can you use 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.

Who invented computer?

Who is called the father of modern computer? In this way, many people have contributed in this computing field. But out of all this, Charles Babage 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 computer.

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”.

accepts dataInput
processes dataProcessing
produces outputOutput
stores resultsStorage

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, 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.

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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 directly or in direct 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 within 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 Acess 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 in 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 already has many slots built in. Names of some expansion cards 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

What is computer
What is computer

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

For example, the computer monitor that we use to navigate, the mouse that we use to navigate, these 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, 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 in 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, Scanners to scan a barcode, Calculators to do any 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 like Monitor, Keyboard, Mouse, Computer Case.

2. Laptop

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

3. Tablet

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

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

4. Servers

A server is some 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.

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 computer 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 a gift of science. 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 Transaction.

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 computer.

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

Benefits of computer

By the way, it would not be wrong at all to say that 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 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.

1. Multitasking

Multitasking is a great advantage of computer. In this, a person can easily calculate multiple tasks, multiple operations, numerical problems in a few seconds. Computer can easily calculate in trillion of instructions per second.

2. Speed

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.

3. Cost / Stores a large amount of data

It is a low-cost solution. Because in this, a person can save a large amount of data in 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.

4. Accuracy

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

5. 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 computer.

1. Virus और Hacking Attacks

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 attachment, sometimes also 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.

2. 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.

3. 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, it does not have IQ, it totally depends on the users, it has no feeling, it cannot take any decision by itself.

What are the best tips to protect my computer from viruses and identity theft?

We all know that our computers are vulnerable to viruses and identity theft. So how can we protect them? In this blog, we will share some of the best tips to protect your computer from these cyber attacks.

  • First of all you should install a good antivirus software in your computer. There are many antivirus software available in the market. But before buying any one of them, you should do some research and read reviews about that particular software to know whether it is worth buying or not.
  • You should also have a strong password for your online accounts like email and social media accounts etc. This is important because if someone gets access to your account, they can use it to steal your personal information and create fake accounts in your name.

Future of computer

The future of computers is not only of hardware and software but also of the people who use them. As we move into a new era of computing, it is important to acknowledge that the future of technology will be shaped by how we interact with it.

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 does the computer do?

A computer takes input from the user, processes it according to the instructions and shows the result to the user through its output device.

Who controls all the functions of the computer?

The CPU controls the work of all parts of the computer.

What did you learn today?

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

I will definitely try to solve those doubts. How did you like this article computer, do tell us by writing a comment so that we too get a chance to learn something from your thoughts and improve something.

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