What are computers?

by Emma

What are computers?

A computer is an electronic device that processes information in the data inputted by the user and provides information as a result, that is, a computer is an electronic machine that follows the instructions given by the user. It has the ability to store, retrieve, and process data. You can use a computer to type documents, send an email, play games, and browse the web. You can use it to create spreadsheets, presentations, and even videos.

 ” Computer User by Input the data are Process and the results Output provides as 
  “The Data Input Process By Computer User By Output Results Are Provided As”


The word Computer has originated from the word “COMPUTE” in English which means “to calculate”. Therefore, it is clear that the computer is directly related to the calculating machine, at present, its area has become very wide rather than being limited only to computation. The computer due to its high storage capacity, speed, automation, efficiency, accuracy, versatility, reliability, remembering the power of our life. Is becoming important in every field. Calculations can be done at a much faster pace in more subtle time by the computer, the results given by the computer are more accurate.

Nowadays computers are being used in every region of the world such as – space, film production, traffic, business, railway station, school, college, airport, etc. Whereas reservation of seats in airplanes, railways and hotels is done by the computer, on the other hand, due to computer in banks, the work is being done with accuracy and speed.

Hardware vs. software

Before talking about different types of computers, we come to know about two things that are common to all computers: hardware and software.


Hardware is any part of your computer that includes a physical structure, such as a keyboard or mouse. It also includes all the internal parts of the computer, which you can see in the image below.


Software is any set of instructions that tell the hardware what to do and how to do it. Examples of software include web browsers, games, and word processors, etc. Everything you do on your computer is done by both hardware and software. For example, now you are viewing this text in a web browser (software), it is a software and using your mouse (hardware) to click on a page, then the mouse is hardware.

Different types of computers

When most people hear the term computer, they think of a personal computer such as a desktop or laptop. However, computers come in many sizes, and they perform many different tasks in our daily lives. When you withdraw cash from an ATM, scan groceries at the store, or use a calculator, it means that you are using a type of computer.

Desktop computers

Many people use desktop computers at work, home, and school. Desktop computers are designed to be placed on a desk, and they are usually made up of a few individual parts, including a computer case, monitor, keyboard, and mouse.

Laptop computers

The second type of computer you are familiar with is a laptop computer, commonly called a laptop. Laptops are battery-powered computers that are more portable than desktops, allowing you to use them almost anywhere.

Tablet computers

Tablet computers — or tablet-handheld computers — are also more portable than laptops. Instead of a keyboard and mouse, tablets use a touch-sensitive screen for typing and navigation. The iPad is an example of a tablet.


A server is a computer that provides information to other computers on the network. For example, whenever you use the Internet, you are looking at a server that is stored on the server. Many businesses also use local file servers to store and share files internally.

Other types of computers

Smartphone: Many cell phones can do many things including browsing the internet and playing games. They are often called smartphones.

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

Game Console: A game console is a special type of computer that is used to play video games on your TV.

TV: Many TVs now include applications or apps that allow you to access a wide variety of online content. For example, you can stream videos from the Internet directly to your TV.

Features / Characteristics of Computer (Computer Features)

Speed ( speed)

You can go anywhere on foot, still use a bicycle, scooter or car so that you can do any task faster, with the help of a machine, you can increase the speed of work, similarly, the computer can do any task very fast. A computer can do millions of actions like multiplication, division, addition, subtraction in a few seconds. If you have to find a value of 500 * 44, then it will take 1 or 2 minutes, if you do the same with a calculator, about 1 Or it will take 2 seconds but the computer can do millions of such calculations in few seconds.

Automation (automation)

We use many types of automated machines in our daily life. The computer also does its entire work in an automatic way. The computer keeps doing its work automatically once the program is loaded.

 Accuracy (Accuracy)

The computer does all its work without any fault. If you are asked to multiply 10 different numbers, you will make many mistakes in it. But generally, the computer can complete any process without any fault, the biggest reason for computer fault is wrong data input because the computer itself never makes any mistake.

Versatility (sovereignty )

The computer has increased rapidly due to its universality and is gaining dominance in the whole world. The computer is being used for doing mathematical work as well as for commercial work. The computer is being used in every field. Like- Bank, Railway, Airport, Business, School, etc.

High Storage Capacity ( high storage capacity)

The ability to store data in a computer system is very high. The computer can store millions of words in very less space. It can store all types of Data, Picture, Files, Program, Games and Sound for many years. And later we can get any information in a few seconds and bring it to our use.

Diligence (diligence)

Today, humans are tired of doing a task continuously for a few hours, on the contrary, Computer has the ability to do a task continuously for many hours, days, months, even then there is neither a decrease in its ability to work and Nor does the accuracy of the result of the work decrease. Computer performs any given task without any discrimination whether the task is interesting or not.

Reliability (reliability)

Memory of computer is more powerful. The entire process related to computer is reliable, it does not get tired by working for years and Store Memory remains accurate even after years.

Power of Remembrance (ability to remember)

A person does many things in his life but remembers only important things, but the computer stores all the things, whether it is important or not, and keeps them all inside the memory and provides any information later when needed. |

Summary Words
  1. A computer is an electronic device.
  2. The word computer is derived from the word “Compute” in English.
  3. The computer processes the data inputted by the user and provides the result as output.
  4. Software is a set of instructions that tell the hardware what to do and how to do it.
  5. Hardware is that part of your computer that includes physical structures.
  6. A laptop is a battery-powered computer that is more portable than a desktop.
  7. The tablet uses touch-sensitive screens for typing and navigation.

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