Essay on Computer

500+ words essay on computer.

A computer is an electronic device that performs complex calculations. It is a wonderful product of modern technology. Nowadays, computers have become a significant part of our life. Whether it is in the sector of education or health, computers are used everywhere. Our progress is entirely dependent on computers powered by the latest technology. This ‘Essay on Computer’ also covers the history of computers as well as their uses in different sectors. By going through the ‘Computer’ Essay in English, students will get an idea of writing a good Essay on Computers. After practising this essay, they will be able to write essays on other topics related to computers, such as the ‘Uses of Computer’ Essay.

The invention of the computer has made our lives easier. The device is used for many purposes, such as securing information, messages, data processing, software programming, calculations, etc. A desktop computer has a CPU, UPS, monitor, keyboard, and mouse to work. A laptop is a modern form of computer in which all the components are inbuilt into a single device. Earlier, computers were not so fast and powerful. After thorough and meticulous research and work by various scientists, modern-day computers have come up.

History of Computers

The history of computer development is often used to reference the different generations of computing devices. Each generation of computers is characterised by a major technological development that fundamentally changed the way computers work. Most of the major developments from the 1940s to the present day have resulted in increasingly smaller, more powerful, faster, cheaper and more efficient computing devices.

The evolution of computer technology is often divided into five generations. These five generations of computers are as follows:

Uses of Computers

Computers are used in various fields. Some of the applications are

1. Business

A computer can perform a high-speed calculation more efficiently and accurately, due to which it is used in all business organisations. In business, computers are used for:

  • Payroll calculations
  • Sales analysis
  • Maintenance of stocks
  • Managing employee databases

2. Education

Computers are very useful in the education system. Especially now, during the COVID time, online education has become the need of the hour. There are miscellaneous ways through which an institution can use computers to educate students.

3. Health Care

Computers have become an important part of hospitals, labs and dispensaries. They are used for the scanning and diagnosis of different diseases. Computerised machines do scans, which include ECG, EEG, ultrasound and CT Scan, etc. Moreover, they are used in hospitals to keep records of patients and medicines.

Computers are largely used in defence. The military employs computerised control systems, modern tanks, missiles, weapons, etc. It uses computers for communication, operation and planning, smart weapons, etc.

5. Government

Computers play an important role in government services. Some major fields are:

  • Computation of male/female ratio
  • Computerisation of PAN card
  • Income Tax Department
  • Weather forecasting
  • Computerisation of voters’ lists
  • Sales Tax Department

6. Communication

Communication is a way to convey an idea, a message, a picture, a speech or any form of text, audio or video clip. Computers are capable of doing so. Through computers, we can send an email, chat with each other, do video conferencing, etc.

Nowadays, to a large extent, banking is dependent on computers. Banks provide an online accounting facility, which includes checking current balances, making deposits and overdrafts, checking interest charges, shares, trustee records, etc. The ATM machines, which are fully automated, use computers, making it easier for customers to deal with banking transactions.

8. Marketing

In marketing, computers are mainly used for advertising and home shopping.

Similarly, there are various other applications of computers in other fields, such as insurance, engineering, design, etc.

Students can practise more essays on different topics to improve their writing skills. Keep learning and stay tuned with BYJU’S for the latest update on CBSE/ICSE/State Board/Competitive Exams. Also, download the BYJU’S App for interactive study videos.

Frequently asked Questions on Computer Essay

How has the invention of the computer been useful to students.

Easy and ready access to information has been possible (internet) with the invention of the computer.

How to start writing an essay on a computer?

Before writing an essay, first plan the topics, sub-topics and main points which are going to be included in the body of the essay. Then, structure the content accordingly and check for information and examples.

How to use the computer to browse for information on essays?

Various search engines are available, like Google, where plenty of information can be obtained regarding essays and essay structures.

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Essay on Computer and its Uses for School Students and Children

500+ words essay on computer.

In this essay on computer, we are going to discuss some useful things about computers. The modern-day computer has become an important part of our daily life. Also, their usage has increased much fold during the last decade. Nowadays, they use the computer in every office whether private or government. Mankind is using computers for over many decades now. Also, they are used in many fields like agriculture, designing, machinery making, defense and many more. Above all, they have revolutionized the whole world.

essay on computer

History of Computers

It is very difficult to find the exact origin of computers. But according to some experts computer exists at the time of world war-II. Also, at that time they were used for keeping data. But, it was for only government use and not for public use. Above all, in the beginning, the computer was a very large and heavy machine.

Working of a Computer 

The computer runs on a three-step cycle namely input, process, and output. Also, the computer follows this cycle in every process it was asked to do. In simple words, the process can be explained in this way. The data which we feed into the computer is input, the work CPU do is process and the result which the computer give is output.

Components and Types of Computer

The simple computer basically consists of CPU, monitor, mouse, and keyboard . Also, there are hundreds of other computer parts that can be attached to it. These other parts include a printer, laser pen, scanner , etc.

The computer is categorized into many different types like supercomputers, mainframes, personal computers (desktop), PDAs, laptop, etc. The mobile phone is also a type of computer because it fulfills all the criteria of being a computer.

Get the huge list of more than 500 Essay Topics and Ideas

Uses of Computer in Various Fields

As the usage of computer increased it became a necessity for almost every field to use computers for their operations. Also, they have made working and sorting things easier. Below we are mentioning some of the important fields that use a computer in their daily operation.

Medical Field

They use computers to diagnose diseases, run tests and for finding the cure for deadly diseases . Also, they are able to find a cure for many diseases because of computers.

Whether it’s scientific research, space research or any social research computers help in all of them. Also, due to them, we are able to keep a check on the environment , space, and society. Space research helped us to explore the galaxies. While scientific research has helped us to locate resources and various other useful resources from the earth.

For any country, his defence is most important for the safety and security of its people. Also, computer in this field helps the country’s security agencies to detect a threat which can be harmful in the future. Above all the defense industry use them to keep surveillance on our enemy.

Threats from a Computer

Computers have become a necessity also, they have become a threat too. This is due to hackers who steal your private data and leak them on internet. Also, anyone can access this data. Apart from that, there are other threats like viruses, spams, bug and many other problems.

essay on computer for class 5th

The computer is a very important machine that has become a useful part of our life. Also, the computers have twin-faces on one side it’s a boon and on the other side, it’s a bane. Its uses completely depend upon you. Apart from that, a day in the future will come when human civilization won’t be able to survive without computers as we depend on them too much. Till now it is a great discovery of mankind that has helped in saving thousands and millions of lives.

Frequently Asked Questions on Computer

Q.1  What is a computer?

A.1 A computer is an electronic device or machine that makes our work easier. Also, they help us in many ways.

Q.2 Mention various fields where computers are used?

A.2  Computers are majorly used in defense, medicine, and for research purposes.

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Long and Short Computer Essay

The term computer was once used to refer to a person who did computation, unlike today. The development of early prototypes that led to the modern computer is credited to many individuals throughout history. A series of breakthroughs, beginning with transistor computers and then integrated circuit computers, resulted in the development of transistor technology and the integrated circuit chip, causing digital computers to largely replace analogue computers. 

In this essay, we will discuss the various components and types of computers and talk about their uses in various fields.

Long Computer Essay in English

A computer is an electronic tool that manipulates data or information. It can store, retrieve, and process information. We can type documents, send emails, play games, and browse the Web using a computer. It can also be used to edit spreadsheets, presentations, and even videos, or create them. 

Early computers were conceived only as devices for calculating. Simple manual devices such as the abacus have helped individuals do calculations since ancient times. Some mechanical devices were built early in the Industrial Revolution to automate long, tedious tasks, such as guiding patterns for looms. In the early 20th century, more sophisticated electrical machines performed specialized analogue calculations. 

Common Components of Computers

All those parts of a computer that are tangible physical objects are covered under the term hardware. The hardware includes circuits, computer chips, graphics cards, sound cards, memory (RAM), motherboards, displays, power supplies, cables, keyboards, printers and "mice" input devices.

 There are five main hardware components: 

Input Devices: 

These are devices that are used to enter data/information in the central processing unit. Example- keyboard, mouse, scanner, document reader, barcode reader, optical character reader, magnetic reader etc.

Output Devices: 

These are devices that provide the processed data/information into human-readable form. Example- monitor, printer, speaker, projector etc.

Control Unit: 

The control unit handles the various components of the computer; it reads and interprets (decodes) the instructions for the program, transforming them into control signals that activate other computer parts.

Arithmetic Logic Unit: 

It is capable of performing arithmetical and logical functions. The set of arithmetic operations supported by a specific ALU may be restricted to addition and subtraction or may include functions of multiplication, division, trigonometries such as sine, cosine, etc., and square roots.

Central Processing Unit: 

The ALU, control unit and registers and together called the CPU. It is sometimes called the computer's brain, and its job is to perform commands. We send instructions to the CPU whenever we press a key, click the mouse, or start an application.

Software refers to computer parts, such as programs, data, protocols, etc., that do not have a material form. In contrast to the physical hardware from which the system is built, the software is that portion of a computer system consisting of encoded information or computer instructions.

It is sometimes called "firmware" when the software is stored in hardware that can not be easily modified, such as with a BIOS ROM on an IBM PC compatible computer.

Computer hardware and software require each other, and neither of them can be realistically used on their own. There are four main components of a general-purpose computer: the arithmetic logic unit (ALU), the control unit, the memory, and the I/O (collectively called input and output) devices.

Uses of Computer

Computers are used in various fields, such as homes, businesses, government offices, research organizations, educational institutions, medicine, entertainment, etc. because of their features and powerful functions. They have taken sectors and companies to a whole new level.

Science- 

Computers are best suited for the collection, analysis, categorization, and storage of data in science, research and engineering. They also help scientists to exchange data both internally and internationally with each other.

Government-  

Computers in the government sector are used to perform various functions and improve their services. In most cases, data processing tasks, the maintenance of citizens' databases, and the promotion of a paperless environment are the primary purposes of using computers. In addition to this, computers play a key role in the country's defence system.

Health and Medicine- 

They are used to preserve information, records, live patient monitoring, X-rays, and more from patients. Computers assist in setting up laboratory tools, monitoring heart rate and blood pressure, etc. Besides, computers allow physicians to easily exchange patient data with other medical specialists.

Education- 

They help people get different educational materials (such as images, videos, e-books, etc.) in one place. Also, computers are best suited for online classes, online tutoring, online exams, and task and project creation. Also, they can be used to maintain and track student performance and other data.

Banking- 

Most countries use online banking systems so that customers can access their data directly. People can verify the balance of their account, transfer cash, and pay online bills, including credit cards. Besides, banks use computers to execute transactions and store client information, transaction records, etc.

Short Computer Essay in English

A computer's a programmable device that accepts raw data(input) and processes it as output with a group of instructions (a program) to supply the result. It renders output after performing mathematical and logical operations and can save the output for future use. The word "computer" derives from the word "computare" in Latin, which means calculating.

Types of Computer

Computers are of different types based on different criteria. Based on their size, computers are of five types:

Micro Computers- 

It is a single-user computer that has less capacity for speed and storage than the other types. For a CPU, it uses a microprocessor. Laptops, desktop computers, personal digital assistants (PDAs), tablets, and smartphones are common examples of microcomputers. Microcomputers are generally designed and built for general use, such as browsing, information search, the internet, MS Office, social media, etc.

Mini Computers- 

Minicomputers are also referred to as "Midrange Computers." They are multi-user computers designed to simultaneously support multiple users. Therefore, they are generally used by small companies and firms. 

Mainframe Computers- 

It is also a multi-user computer that large companies and government organizations use to run their business operations as large amounts of data can be stored and processed. Banks, universities, and insurance companies, for example, use mainframe computers to store data from their customers, students, and policyholders.

Super Computer- 

Among all types of computers, supercomputers are the fastest and most costly computers. They have an enormous capacity for storage and computing speeds and can therefore perform millions of instructions per second.

Workstations-  

It is a single-user computer with a comparatively more powerful microprocessor and a high-quality monitor compared to a mini-computer.

Benefits of Computers:

It increases productivity.

It helps in connecting to the internet.

It helps in organizing data and information.

It allows storing large amounts of data.

Fun Facts About Computers

The first electric computer that was invented weighed around 27 tons or even more than that and took up to 1800 square feet.

There are about 5000 new viruses that are released every month.

The original name of Windows was Interface Manager.

It is surely known that the life of humans would not have been so easy if computers were not a part of human life. This is also supported by a lot of pieces of evidence where we can even see in daily life how the computer is not just present in an organization but is also available right in the pockets of everyone. Thus, the computer has surely made it easy while also spoiling a lot of people's lives. 

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FAQs on Essay on Computer

1. What are the disadvantages of computers?

While the computer has surely made life easier, it also has a lot of disadvantages. The disadvantages of the computers can be provided as follows:

People spend too much time sitting and doing nothing but watching the content on computers.

People staring at computers for a long time also tend to strain their eyes, and as a result, they need spectacles to understand what is being written in front of them.

Attention span is decreasing with an increase in the use of computers. 

With computers being AI-powered, it is now easier for people to do all the tasks on a computer and not work on it themselves. This has made a lot of people lazy.

2. What is the process of working on a computer?

A computer is an electronic machine and it needs information to be added in as raw data to function well. It has a flow that determines the accessing of data. The following steps take place before the results are obtained:

Information is taken in by the computer in the form of raw data. This process is also called the input.

Then the information that is not needed will be stored while the information that is needed is passed onto the next step. The storing of data is called memory.

Then the information that is required is crushed or it is split and this process is called processing.

The last step is where the results are obtained. This process is called getting the output.

EssayBanyan.com – Collections of Essay for Students of all Class in English

Computer Essay

A computer is an electronic device used to carry out several complex tasks, such as managing large data, doing complex calculations, printing, controlling heavy machinery and complex protection system, etc. They are used in almost every field because of their high efficiency, almost zero possibility of an error and functional ease and excellence.

Short and Long Essay on Computer in English

Here I’m presenting short and long essays on computer in different word limits for students of classes 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12. 10 Lines essay on computer is also added to help lower class students:

Computer Essay 10 Lines (100 – 150 Words)

1) Computer is an electronic machine that can be used to perform complex tasks.

2) Computers can be used to manage large data, complex calculations, store bulk data, etc.

3) Computer performs the task very fast with zero error.

4) Input devices, Output devices, and CPU (Central Processing Unit) are the main parts of a computer.

5) According to size, Mainframe, Micro, Mini, and Supercomputer are the types of computers.

6) He was Charges Babbage who designed the first mechanical computer in 1822.

7) In railway stations, computers are used for managing signals and holding records.

8) Computers play a major role in education and are thus useful for students.

9) Hospitals use computers to keep records of doctors, patients, and other related information.

10) Today in every field, computers are widely used to simplify work.

Essay 1 (250 Words) – Uses of Computer

Introduction

Computer is a device that is used for several purposes like storing records and data, printing and performing other complex tasks. Their high level of usefulness has made computers being used in almost every office, schools and houses today.

Here are some of the fields where computers are used:

Hospitals have to keep several records. They have to keep records of their patients, their medical history, dates of the last visit, addresses, diagnosis, etc. They also have to maintain a stock of medicines available and regularly update it. Maintaining such huge data related to different subjects would be an impossible task if it is to be done manually. Computers, make this colossal-looking job much easier by storing Gigabytes of information in its memory and reveal the information with a simple push of a button.

Schools and Offices

Computers are used in schools mainly for educational purposes and for maintaining relevant data of students and staff, as well as in the offices for a wide range of purposes. Computers in schools contain all academic and personal records of the students. It contains everything from grades obtained to the contact number of the person in case of an emergency.

Railway Stations

Computer is also widely used in railway stations. They are used in the operation of locomotives, through signals and systems, as well as for very basic yet important job of booking and printing tickets of the passengers.

Computers are widely used at almost every commercial location for their efficiency and ease of adaptability. Today any business would stand still without computers.

Essay 2 (400 Words) – Components and Types of Computer

Computer is a machine that can carry out complex functions as per the instructions provided by humans. Their high efficiency and ability to perform any task has made them widely in use.

Components of Computer

Any computer mainly has three main components – Input (I/p) Device, the Central Processing Unit (CPU) and the Output (O/p) Device.

  • An input device is used to feed instructions to the computer. Keyboard, joysticks, touch pens are some of the examples of Input devices.
  • The Central Processing Unit is the brain of a computer. It consists of the Arithmetic and Logic Unit (ALU) and the Memory Unit. ALU performs all the complex functions while the Memory Unit stores the data and information.
  • Output devices are used to display the output as desired by the user. Some of the most common output devices are monitors and printers, etc.

Types of Computer

Depending on their architecture, size, and performance, computers can be classified into different types as listed below-

  • Supercomputer

A supercomputer is a high-performance computer that performs much better than the general-purpose computer. Supercomputers require large spaces, often a big room or hall and an effective cooling mechanism to operate.

  • Mainframe Computer

Mainframe Computers are used by large organizations for critical applications such as bulk data processing, enterprise resource planning (ERP), census, etc. They are larger than personal computers and also have more processing power and speed as well.

  • Personal Computer

A personal computer is a computer used for personal use. Its unique size, capabilities, and price, makes it suitable to be used as a personal computer. Unlike, mainframe and supercomputers, personal computers are not shared and are solely operated by a single owner.

A laptop is also a kind of personal computer, but unlike the conventional personal computer, the desktop, it is handy, portable and lightweight. It is easy to carry a laptop and it is so light that it could be placed comfortably on your lap.

Smartphone widely used today are also a kind of mobile computing device. These operate on their own operating systems; those provide them with a wide range of software adaptability and features like internet, web browsing, cameras, etc.

Modern-day computers are used in almost every industry depending on the requirements and needs. From supercomputers to laptops to smartphones, every device is useful in its own unique way and varies widely in price and specification.

Computer Essay

Essay 3 (500 – 600 Words) – History of Computer

Computer is an electronic device that is used to perform complex arithmetical and analytical functions much beyond the natural capacity of humans. Computers are highly efficient devices and perform really fast and accurate. Output generated by a computer is precise and there is no possibility for an error except human error.

History of Computer

The history of the computer is long and has many phases of development. Some consider that an early calculating device named ‘Abacus’ led further to the invention of calculator and computer. Though, the abacus was only a mechanical device consisting of wooden beads those can move on thin rods or wires. Even to this day ‘Abacus’ has retained its original form and doesn’t contain any electronic or electrical part.

  • The Difference Engine

The first-ever mechanical computer was developed by Charles Babbage, no earlier than 1822. This machine was called the ‘Difference Engine’. Charles Babbage is often referred to as ‘Father of the computer’ though; his invention was completely different from the modern-day computers.

  • The Analytical Engine

This machine was a proposal made by Charles Babbage in 1837. It contained ALU (Arithmetic and Logic Unit), flow control, punch card, and integrated memory. It was the first concept to make the general-purpose computer. But unfortunately, due to financial problems, this concept of Babbage, never materialized in his life span. However, his son Henry Babbage was able to develop a portion of the machine as conceptualized by Charles Babbage, no sooner than in 1910.

  • Z1 – The First Ever Programmable Computer

This computer was developed by a German inventor named Konrad Zuse. He developed it during 1936-1938, in his parents’ living room while he was around 26 years old. ‘Z1’ was the first binary programmable computer and the actual predecessor of modern-day computers.

  • The Turing Machine

This machine was proposed by Alan Turing in 1936. Turing was a mathematician and a computer scientist based in the United Kingdom. Turing machine was capable of simulating and algorithm and printing symbols on a paper tape.

  • The Colossus

The Colossus was a set of machines developed by the British during World War II. These were developed by the British code breakers, during 1943-1945 to read high-level messages of the German Army during the Second World War.

  • First Digital Computer

The first digital computer used plus 300 vacuum tubes and could perform mathematical calculations and Boolean logic. It was also called Atanasoff-Berry Computer (ABC Computer), after its two inventors John Vincent Atanasoff and Cliff Berry. They developed it from 1937-1942 at Iowa State College which is now Iowa State University.

  • First Electronic Computer (ENIAC)

ENIAC is an abbreviation of Electronic Numeric Integrator and Calculator, developed in 1943, at the University of Pennsylvania by J. Presper Eckert and John Mauchly. It was colossal, heavy and required 1800 square feet. It also used around 18,000 vacuum tubes and weighs approximately 50 tons. This was the first fully functional digital computer.

  • First Computer Company

The first computer company was founded in 1949 and it was named Electronics Control Company. It was founded by two persons who helped create the ENIAC – J. Presper Eckert and John Mauchly.

Modern computers have evolved through hundreds of years to reach the efficiency and shape that we see today. But, evolution is not over yet and will continue for centuries to come with the help of humans innovating to bring new technological advancements.

FAQs: Frequently Asked Questions on Computer

Ans . Charles Babbage is called the father of computer.

Ans . The microprocessor is considered the heart of the computer.

Ans . Bit is the smallest unit of data in a computer.

Ans . RAM is located on the motherboard of the computer.

Ans . Vint Cerf is regarded as the father of the internet.

Ans . The name of the first supercomputer of India is PARAM 8000.

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Download CBSE Class 5 Computer Sample Papers 2024-25 Session in PDF

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Hello Students. In this article, we have discussed the Class 5 Computer Sample Papers. Sample Paper is most beneficial, especially for the preparation for school exams. Classes 5 students need to have a great practice of all the concepts and one of the best ways to achieve the same is through Sample Papers. This article can be the CBSE Class 5 Computer Sample Paper in pdf format, which is free.

Class 5 Computer Syllabus Explained in Video

Below we have mentioned the video about the class 5 Computer Syllabus; you can see more subject-related videos on our YouTube channel.

CBSE Class 5 Computer Syllabus 2024-25

Understanding the basics contents of Class 5 Computer Syllabus. Let us now discuss the subject-wise Class 5 Computer syllabus with topics to be covered.

Class 5 Computer Sample Paper

Below we have mentioned the Computer Sample Paper for Class 5. Students have checked the complete Class 5 Computer Sample Paper for a great score in the final examination.

NOTE: The links given below for Download Class 5 Computer Sample Papers in pdf format

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Other Computer Worksheets

Here we have mentioned the other worksheets of Computer Science. Students can check the complete Other Computer Worksheets in pdf for scoring good marks in the examination.

Class 5 Computer Useful Resources

Below we have mentioned the CBSE Class 5 Computer Useful Resources. Students can check these links to learn more about the study material.

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Computer Essay

A computer is an electronic device capable of performing complex calculations and tasks impossible for a human brain to accomplish. First ever mechanical computer was developed in 19 th century by Charles Babbage. Since then computers have undergone many transformational changes in size and processing speed. Modern computers are capable of taking human instructions in a form of language called programming language and delivering output in fraction of a second.

Today, computers are used in every office and institution for performing a number of tasks from maintaining and processing data, keeping records of transactions and employees, preparing and maintaining account statements, balance sheets etc. High speed computers are used in more complex science programs such as space exploration missions and satellite launch. Computers have become an integral part of our life due to its usefulness into various fields.

Long and Short Essay on Computer in English

Find very simple to write and easy to learn essay on computer. Computer is a very high technique invention which everyone must know about and its advantages in life.

It is very much liked by kids. So bring some creativity in the education of your kids and children through computer.

We have provided below various computer essay in different words limit like 100 words, 150 words, 200 words, 250 words, 300 words and 400 words according to the need and requirement of students.

Computer Essay 1 (100 words)

A computer is a great invention of the modern technology. It is generally a machine which has capability to store large data value in its memory. It works using input (like keyboard) and output (like printer) devices. It is very simple to handle the computer as its functioning is so common that a child can handle it. It is a very reliable device which we can carry with us and use anywhere and anytime. It allows us to make changes in the already stored data as well as store new data. Computer is a new technology which is used in offices, banks, educational institutions, etc.

Computer

Computer Essay 2 (150 words)

Computer is a modern tool which has made life very easy and simple. It has capability to complete more than one task in small time. It is able to do work of many human beings alone within less time. It is the utility of highest efficiency. The first computer was a mechanical computer which was created by the Charles Babbage. A computer works successfully using its hardware and fully installed application software. Other accessories of the computer are keyboard, mouse, printer, CPU and UPS.

The data which we put into the computer using device is called input data and device as input device and data which we take outside using printer or other device is called as output data and device as output device. The input data gets changed into the information which can be stored and changed anytime. Computer is very safe tool for data storage which is being used in various fields. We can shop, pay our electricity bill, water bill, video chat, messaging, e-mail messages anywhere in the world and lots of online activities using internet.

Computer Essay 3 (200 words)

Computer is the latest technology which is used almost everywhere. It has made possible to do large amount of works in very small time. It has reduced the man effort in the offices means it gives high level of work output in very small time, less effort, low man power, etc. Now a day, it has become hard to imagine our lives without computer. We can use internet in the computer which gives us lots of required information on any subject in very less time. There are great contributions of the computer in the lives of human being. It is playing big role in every field and helping us every single moment. Old generations of the computer were less effective with less functions but new generations of it are amazing with high capacity, easy to handle and more functions.

Future generations of the computer would be more effective and lots of functioning. It has made our life easier. Using this we can easily learn anything and enhance our skill. We can get any information about any service or product or other thing within no time. We can buy anything online using computer and internet and get free delivery. It is very useful for the preparation of project work of any student reading in any class.

Computer Essay 4 (250 words)

Computer is the wonderful and mastermind gift of the science to the whole human fraternity. It can be used to do any kind of works. It is very easy to handle by anyone and takes very less time to learn. Because of its easiness and high work efficiency, it is being used in many fields like offices, banks, hotels, educational institutions, shops, hospitals, commercial places, schools, colleges, training institutes, military establishments, military, industries, etc. Many people buy laptop or desktop for their kids to learn about required things in their schools or playing computerized video-games, etc.

Computer is a big dictionary and large storage device which we use to save any type of large amount of data like information, study materials, projects, photos, images, video, audio, songs, clips, games, and many more. It is an electronic machine which is able to calculate and solve big problems. It helps in enhancing our skill level and get information easily. It is very simple data based machine. It provides facility of many other tools like paint tool, text tool, etc which are very beneficial for the kids, children and students to use it more effectively.

We can use it for any big or small mathematical calculations very accurately. It is used to forecast the information about weather, in printing books, news papers, diagnosing diseases, etc. It is used to make online railway reservations, ticket booking, hotel or restaurant booking from any place all over the world. It is used by MNC companies for the accounting purpose, invoicing, pay rolls, stock control, etc.

Computer Essay 5 (300 words)

In the modern world of technological advancement, computer is the amazing gift given by the science to us. It has changed the living style and standard of the people. No one can imagine the life without computer as it has made lots of works so easy within less time. Computer is playing great role in the development of the developing countries. It is not only a storage or processing device but it is like an angel which can make anything possible. By many people it is used as the source of entertainment and communication.

We can get connected to our friends, relatives, parents or others in no time through the use of video chat or email. Using internet in the computer we can search and retrieve vast information on any subject useful for our education or project work. It is very safe and easy for the business transactions purposes through banks to any accounts. By providing the facility of data storage it has lessen the paper works in the governmental and non-governmental offices or colleges. One can save lots of time and effort by online shopping, paying bill, etc by being at home through the computer.

Computer education has been made compulsory by the government of India in all the schools, colleges and other educational institutions for enhancing the skill level as well as the easiness of the students in their professional life. Learning computer has become very essential in all the modern-day jobs. In the higher education there are subjects like network administration, hardware maintenance, software installation, etc for the enhancement of skill.

Computer Essay 6 (400 words)

Invention of the computer has made many dreams come true even we cannot imagine our lives without computer. Generally computer is a device used for many purposes like information storage, email, messaging, software programming, calculation, data processing and many more. Desktop computer need a CPU, an UPS, a keyboard and a mouse for well functioning however laptop does not need anything to add outside as it is included with all inside. Computer is an electronic device having big memory which can save any data value. We are living in the advanced world of computer in the 21 st century.

Earlier the functioning of the old generation computer was very limited but new generation computers are amazing with lots of functioning. Charles Babbage had invented the first mechanical computer which was totally different from the modern day computer. The aim of computer invention was to create a machine which can perform very fast mathematical calculations. During the World War II it was used to locate and estimate the direction and speed of weapons of the enemies. Modern day computers are available with the artificial Intelligence technology to helps us in every sector of life.

New generation computer are being highly advanced means smaller, lighter, speedier and more powerful. Now a day, it is running in almost all walks of life like weather forecasting, guidance of spacecraft, examinations, education, shopping, traffic control, high level programming, automation in banks, railway ticket booking, playing games, medical sector, machinery operations, job opening, business, crime detection etc.

It is the backbone of the Information Technology including with the internet and proved that nothing is impossible today. If there are positive effects of the computer on the life of human being, it also negatively affected the human lives such as rise in the Cyber crime, pornographic websites can be accessed by kids or younger and many more however using some preventive measures we can be safe from its negative effects.

The whole human fraternity is becoming highly dependent on the computer technology; no one can imagine life without computer. As, it has spread its wings so deeply in every area and made people used of it. It is very beneficial for the students of any class. They can use it to prepare their projects, learn poems, read different stories, download notes for exam preparations, collect large information within seconds, learn about painting, drawing, etc. It enhances the professional skills of the students and helps in getting job easily.

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NCERT Solutions for Class 5 Computer Science Chapter 1 History of Computer

essay on computer for class 5th

NCERT Solutions for Class 5 Computer Science Chapter 1 History of Computer updated for CBSE session 2024-25. The grade 5 computer book chapter 1 includes assignments, notes and worksheets for CBSE and State board students.

Class 5 Computer Science Chapter 1 History of Computer

  • Class 5 Computer Science Chapter 1 Study Material
  • Class 5 Computer Science Study Material Book
  • Class 5 all Subjects NCERT Solutions

Let us Learn about the history of computers. Essentially there are three kinds of calculating devices viz, manual, mechanical and automatic. Abacus, Napiers Bones, Pascal’s Adding Machine and Leibniz’s calculator were early manual devices. Abacus (1100 BC) The first calculating device was Abacus. Abacus was used by Babylonians as an aid to simple arithmetic operations. It was used in China in 1300 A.D. It was a major tool for calculation until the 16th century. Abacus is a frame with beads on strong wires or rods. It consists of beads divided into two parts. In the first part there are two beads and in the second parts there are five beads. Addition and multiplication of numbers are done using the place value of the digits of the numbers and position of beads in the abacus.

Pascaline (1642) A French mathematician named Blaise Pascal developed a calculator. It calculated faster than the abacus. It was known as the first real Mechanical calculator and was called Pascals’ Machine. Blaise Pascal invented an adding machine in 1642 which was made up of gears. The machine was named as adding machine and was capable of additions and subtractions. Leibniz’s Calculator (1671) In 1671, G.W. Leibniz invented a calculator which could multiply, divide, add and subtract.

1822 (Charles Babbage) Charles Babbage designed the first mechanical computer called Difference Engine. But unfortunately it was never completed. Charles Babbage is known as the father of computers. 1834 Charles Babbage designed another machine called Analytical Engine. It had all the items used in today’s computers. Input was taken using punched cards. For processing of data ‘Mill’ was used and it had a ‘Store’ similar to a computer’s memory. For his contribution to computer’s memory, he is known as the Father of Modern Computers. 1941 Prof. Harvard Aiken designed a computer based on the ideas of Charles Babbage for a computer company called IBM. IBM stands for International Business Machines. This computer was called Harvard MARK-I and it worked electro-mechanically. It was 51 feet long and 8 feet high.

1943-45 (First Digital Computer) ENIAC (Electronic Numerical Integrator and Calculator), a totally electronic digital computer was designed as first of its kind. It was designed for the specific purpose of computing values for the United States’ army. It had a shortcoming that it took days to rewire the machine for each new problem. It was also enormous occupying a very big area. It could do around 1,00,000 calculations per second. 1945 In 1945 when ENIAC was nearing completion, planning began for ENIAC’s successor EDVAC (Electronic Discrete Variable Computer). Much of its electrical engineering was developed by John Mauchly, J. Presper Eckert Jr., John Von Neumann and others. This computer’s design was that of a stored-program computer. It was the first computer which used the magnetic tape.

1949 EDSAC stands for Electronic Delay Storage Automatic Computer . It was constructed by Maurice Wilkes. He had suggested that besides doing calculations, a computer can also store programs. This was the first stored program computer with significant calculating ability. EDSAC ran its first program in 1949. 1950 The first Generation of computers UNIVAC ( Universal Automatic Computer ) was designed by J. Presper Eckert and John Mauchly. It used an operator keyboard and the magnetic tape for input. It was designed as a commercial data processing computer. It was the fastest business machine yet built. It was produced in the USA.

1950 Floppy Disk was invented at the Imperial University in Tokyo by Dr. Yoshiro Nakamats. It is an important storage device. 1956-1963 In the second generation of computer, vacuum tubes were replaced by transistors. Computers become smaller, faster and cheaper. They used less energy then before. It was possible to do programming in these computers. Example of second generation computers are IBM1401, 1BM 350 RAMAC. 1964 First Super computer, the control data CDC6600 was developed. 1968 LOGO programming language was developed by Seymour Papert during this period. 1970 First RAM chip was introduced by Intel Corporation. It was called 1103 and had a capacity of 1024 bits.

In the third generation computers Integrated Circuits were developed. Transistors became smaller and were placed on silicon chips called semi-conductors. It helped to increase the speed of the computer. Also, different programs could run on these computers at the same time. IBM 360 is an example of third generation computer. 1985 Microsoft came out with its Windows 1.0 operating system. 1998 Microsoft released Windows 1998 operating system. 2001 Microsoft released Windows XP operating system. 2009 Microsoft released Windows 7 operating system. 2014 Microsoft released Windows 10 operating system. 2021 Microsoft released Windows 11 operating system

In the fourth generation microchips were developed. These computers are still in use and are being developed further. Microprocessor chips were developed at this stage. 0 and 1 were coded to do arithmetical operations. These are known as binary numbers. These computers are fast and efficient. Examples are Personal Computers, Workstation etc. Fifth generation computers are still under progress and development.

They have very high storage capacity, with speed and efficiency. Computers of this generation are called super computers. It has many CPUs connected together and can carry out a large number of scientific operations in a short time. Computers are being developed to enable them to think on their own, like human beings do. It is called artificial intelligence. Robots work on this technology.

NCERT Solutions for Class 5 Computer Science Chapter 1

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