what is a computer short essay

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.

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.

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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.

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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Essay on Computer

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.

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.

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by Chris Woodford . Last updated: April 9, 2023.

I t was probably the worst prediction in history. Back in the 1940s, Thomas Watson, boss of the giant IBM Corporation, reputedly forecast that the world would need no more than "about five computers." Six decades later and—if you count smartphones—the global population of computers has now risen to well over five billion machines! [1]

To be fair to Watson, computers have changed enormously in that time. In the 1940s, they were giant scientific and military behemoths commissioned by the government at a cost of millions of dollars apiece; today, most computers are not even recognizable as such: they are embedded in everything from microwave ovens to cellphones and digital radios . What makes computers flexible enough to work in all these different appliances? How come they are so phenomenally useful? And how exactly do they work? Let's take a closer look!

Photo: NASA runs some of the world's most powerful computers—but they're just super-scaled up versions of the one you're using right now. Photo by Tom Tschida courtesy of NASA .

What is a computer?

Imagine if a computer were a person. Suppose you have a friend who's really good at math. She is so good that everyone she knows posts their math problems to her. Each morning, she goes to her letterbox and finds a pile of new math problems waiting for her attention. She piles them up on her desk until she gets around to looking at them. Each afternoon, she takes a letter off the top of the pile, studies the problem, works out the solution, and scribbles the answer on the back. She puts this in an envelope addressed to the person who sent her the original problem and sticks it in her out tray, ready to post. Then she moves to the next letter in the pile. You can see that your friend is working just like a computer. Her letterbox is her input; the pile on her desk is her memory; her brain is the processor that works out the solutions to the problems; and the out tray on her desk is her output.

What is a computer program?

As you can read in our long article on computer history , the first computers were gigantic calculating machines and all they ever really did was "crunch numbers": solve lengthy, difficult, or tedious mathematical problems. Today, computers work on a much wider variety of problems—but they are all still, essentially, calculations. Everything a computer does, from helping you to edit a photograph you've taken with a digital camera to displaying a web page, involves manipulating numbers in one way or another.

Suppose you're looking at a digital photo you just taken in a paint or photo-editing program and you decide you want a mirror image of it (in other words, flip it from left to right). You probably know that the photo is made up of millions of individual pixels (colored squares) arranged in a grid pattern. The computer stores each pixel as a number, so taking a digital photo is really like an instant, orderly exercise in painting by numbers! To flip a digital photo, the computer simply reverses the sequence of numbers so they run from right to left instead of left to right. Or suppose you want to make the photograph brighter. All you have to do is slide the little "brightness" icon. The computer then works through all the pixels, increasing the brightness value for each one by, say, 10 percent to make the entire image brighter. So, once again, the problem boils down to numbers and calculations.

What makes a computer different from a calculator is that it can work all by itself. You just give it your instructions (called a program ) and off it goes, performing a long and complex series of operations all by itself. Back in the 1970s and 1980s, if you wanted a home computer to do almost anything at all, you had to write your own little program to do it. For example, before you could write a letter on a computer, you had to write a program that would read the letters you typed on the keyboard, store them in the memory, and display them on the screen. Writing the program usually took more time than doing whatever it was that you had originally wanted to do (writing the letter). Pretty soon, people started selling programs like word processors to save you the need to write programs yourself.

Today, most computer users rely on prewritten programs like Microsoft Word and Excel or download apps for their tablets and smartphones without caring much how they got there. (Apps, if you ever wondered, are just very neatly packaged computer programs.) Hardly anyone writes programs any more, which is a shame, because it's great fun and a really useful skill. Most people see their computers as tools that help them do jobs, rather than complex electronic machines they have to pre-program. Some would say that's just as well, because most of us have better things to do than computer programming. Then again, if we all rely on computer programs and apps, someone has to write them, and those skills need to survive. Thankfully, there's been a recent resurgence of interest in computer programming. "Coding" (an informal name for programming, since programs are sometimes referred to as "code") is being taught in schools again with the help of easy-to-use programming languages like Scratch. There's a growing hobbyist movement, linked to build-it yourself gadgets like the Raspberry Pi and Arduino. And Code Clubs , where volunteers teach kids programming, are springing up all over the world.

What's the difference between hardware and software?

Photo: Hardware—the physical part of your computer—is more or less fixed in the factory, although some bits of it (such as drives and memory chips) are fairly easy to remove, replace, and expand.

What is an operating system?

What's inside your pc.

Photo: Inside the case of a typical PC showing four key areas of components, described below. Photo by ArmadniGeneral courtesy of Wikimedia Commons , published under a Creative Commons License .

Power supply (green)

Mainboard (blue), other circuit boards (red), drives (orange), external connectors ("ports").

Photo: USB ports on computers are very robust, but they do break from time to time, especially after years of use. If you have a laptop with a PCMCIA slot, you can simply slide in a USB adapter card like this to create two brand new USB ports (or to add two more ports if you're running short).

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Computer memory (RAM, ROM, etc)
Integrated circuits
Supercomputers

How computers work

History of modern computers, for younger readers, references ↑ this famous quote from thomas watson, sr. isn't quite what it seems. according to the oxford dictionary of quotations (p.94), citing an unspecified ibm source, the quote really comes from watson's son (thomas watson, jr.), and he was actually quoted out of context in 1953. asked how many orders ibm had obtained, he reputedly said something like "we expected five... but we [got] eighteen." as for "five billion", i'm counting smartphones as computers. there are well over 5 billion of those in the world, according to these statistics from ericsson . please do not copy our articles onto blogs and other websites articles from this website are registered at the us copyright office. copying or otherwise using registered works without permission, removing this or other copyright notices, and/or infringing related rights could make you liable to severe civil or criminal penalties. text copyright © chris woodford 2007, 2018. all rights reserved. full copyright notice and terms of use . follow us, rate this page, tell your friends, cite this page, more to explore on our website....

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School Education /

Essay on Computers for Students: What is a Supercomputer?

Updated on
May 24, 2024

The computer is a device used for storing and sharing data, typing documents, playing games, and many more. This modern device has revolutionized the world and has become a crucial part of our daily lives. Over the years, computers have brought about changes not only in people’s lives but also in the technological field. In this blog, we will go over the essay on computers.

Table of Contents

1.1 Importance of Computers in Our Lives
1.2 10 Uses of Computer
1.3 Skills That Can Be Learned Through Computers:
2 What are Supercomputers?
3 150 Words Paragraph on Computer

Essay on Computers in 500 Words

A computer is an electronic device that has led to a technological revolution in the modern world. Being a part of our daily life, this device has seen significant changes throughout the years. However, the exact origin of computers is still unknown.

The original concept for this programming machine was developed in the 19th century by Charles Babbage, also known as the ‘Father of the Computer’. His experiment established the foundation for what modern computers are today. During the 1980s, there was a rise in personal computers, making it easier for individuals to use them for personal purposes. Later, the emergence of the internet allowed the rapid growth of computers in the public domain. The invention of the World Wide Web was seen as the most significant innovation in technology. It paved the path for more advancements than a human society could have imagined.

Quick Read: Essay on Financial Literacy

Importance of Computers in Our Lives

Computers have become an integral part of our daily lives, and much of our work is dependent on them.

Communication and Connectivity – Since ancient times, government organisations have used computers to communicate and connect globally. One example of such a situation in World War II when computers played a significant role in exchanging and coordinating data and information.
Enhance productivity – The primary purpose of computers was to provide support and increase productivity to those carrying out a particular task.
Education – Computers help in acquiring information from all around the world, making learning more accessible.
E-commerce – Computers have changed the way businesses operate promoting digital transactions that help to optimise operations and improve customer service.
Entertainment – A computer offers digital content and streaming services in the comfort of your house, making it a source of entertainment
Innovation – A computer can be used to advance technology in fields such as artificial intelligence and others.

Quick Read: Essay on Viksit Bharat

10 Uses of Computer

Helps in Research and E-Learning : Computers help in education by providing access to knowledge from around the world. Anything may be learned and understood using the content available online.
Analyzing business trends : Analysing business trends involves doing research on the present scenario and developing marketing strategies.
Advanced diagnosis : Computers assist in the diagnosis and treatment of diseases through modern medical technologies such as MRI and CT scans.
Data keeping : A computer helps in the maintenance of data and its records. It allows you to store, access, and share data securely.
Digital literacy : Through computer systems, people can learn about digital advancements in areas that are important for people in this digital age.
E-government services : Nowadays, people can get information about government services directly from their portal.
Online banking : Online banking allows anyone to make digital transactions from anywhere in the world.
E-filling : Any document required for a legal or financial operation can now be completed via the Internet.
Social networking : Using technology, people can connect from anywhere. This helps people network more effectively.
Online shopping : You no longer have to attend the market to shop; instead, you can do so from the convenience of your own home or workplace.

Skills That Can Be Learned Through Computers:

A computer can help you learn many skills if used wisely. Some of the skills are given below:

Technical Skills : Coding, Web development, software development, and cybersecurity.
Business Skills : Microsoft Office suit and Project management
Creative Skills : Graphic Design video editing and music production
Marketing : Digital Media marketing, Social media marketing and analyzing trends
Language Skills : Learning a new language and blogging
Financial Skills : Financial literacy, accounting, and managing data
STEM Skills : Science, Technology, engineering, mathematics
Personal Development Skills

Also Read: Essay on Digital India for Students

What are Supercomputers?

A supercomputer is a higher-level computer with more programming capabilities than a standard computer. These computers are widely used for major projects like scientific research, engineering, and weather forecasting, which demand high speed and accuracy. These computers are capable of performing complex calculations, processing, and storing large amounts of data. The working of these computers can challenge the most simulating scenarios to unveil the most complex mysteries. Supercomputers are pushing the boundaries of technology, driving innovation by expanding our understanding of the world.

CDC 6600 was the first supercomputer invented in 1960 by Seymour Cray. He is also known as the father of supercomputing. Following this, India also introduced its first supercomputer in 1991, known as PARAM 8000. This noted super-machine is 28 times faster and more powerful than the Cray X-MP that the government originally requested and was built for $10 million.

150 Words Paragraph on Computer

Bhumika Sharma

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Computer Essay In English

Our lives have been made easier by the invention of computers. They play a vital role in our lives. The device receives data as input, processes it, and outputs the results. It’s because of computers that we can now do things that were once impossible, and we can do them much faster and more efficiently. Here are some sample essays on the topic ‘Computer’.

100 Words Essay On Computer

200 words essay on computer, 500 words essay on computer.

It’s evident that computers have made our lives much easier in a variety of ways. We rely on them for communication, information, efficiency, and entertainment, and it's hard to imagine life without them. Computers have revolutionised the way we live and work. They are an essential part of our lives, and they have made our lives much easier. Computers have made our lives easier in a number of ways. They allow us to communicate with people all over the world quickly and easily, and they give us access to a vast amount of information. We can use computers to work, study, shop, bank, and entertain ourselves.

Computers have infiltrated every aspect of our lives, from the way we communicate to the way we work and play. They've made our lives easier in so many ways, and it's hard to imagine living without them.

How Computers Made Our Lives Easier

One of the most obvious ways computers have made our lives easier is in the way we communicate. Email, instant messaging, and video conferencing are all revolutionised by computers. We can instantly communicate with anyone in the world, regardless of location or time zone. Computers have also made it easier to access information. In the past, if you wanted to know something, you had to go to the library and hope they had a book on your topic. Nowadays, you can just do a quick Google search and find out whatever you need to know.

In addition, computers have made our lives more efficient. Tasks that used to take hours can now be done in minutes or even seconds with the help of a computer. For example, you can book a flight or hotel room online in just a few clicks. Or if you need to do some research for a project, you can quickly find relevant articles and data with a few keystrokes.

The contemporary computer has become an indispensable component of our daily lives. Their popularity has skyrocketed during the previous decade. Nowadays, computers are used in every office, whether it is private or public. People have been using computers for a very long time. They are utilised in numerous industries, including agriculture, design, manufacturing of machinery, and defence. Computers have brought about a global revolution.

The CPU, display, mouse, and keyboard make up the core components of a basic computer. Hundreds of additional computer components can be connected to it as well. Supercomputers, mainframes, desktop personal computers, PDAs, laptops, and many other forms of computers are all classed under this general category. Because it meets all the requirements for a computer, the mobile phone is also a form of computer.

Uses of Computer in Various Fields

As computer usage grew, using computers in practically every industry became a requirement for business operations. Additionally, they have simplified working and organising. Here are a few of the significant industries that depend on computers for day-to-day operations—

Education Sector

Many students and children are benefiting from the computer's assistance in the educational field. In the modern era, they are a reliable source of educational content. Through the intranet or internet, we can access a wide range of instructional materials in one location. Computers are now frequently used for online learning, teaching, and assessment. Computers make it simple for students to prepare assignments or projects. Computers can be used by teachers to keep track of student data and assess student performance.

Research And Development Sector

Data collection, storage, analysis, classification, and extraction are among scientists' most important needs in the fields of science, research, and engineering. Computers facilitate internal and international scientific communication and data sharing among scientists working in various locations. Working on a project with numerous scientists from different countries is usually beneficial. They use cloud storage for data exchange. The use of supercomputers in research and development is widespread. To plot and analyse data to gain a better understanding of earthquakes and other natural hazards, scientists frequently employ computers. Additionally, computers are essential for the development, upkeep, launch, and control of spacecraft as well as the operation of many other technologies.

Government Sector

The usage of computers is widespread in government-related fields. The government is responsible for many different departments and tasks, and practically all of them are outfitted with computers to carry out various tasks and boost production and efficiency. The key functions of computers include data processing, maintaining citizen information, budgeting for security measures, and many other duties. Computers are also frequently used in areas such as city planning, infrastructure, design, traffic management, and law enforcement.

Medical Sector

Computers are frequently used to keep track of patients, create bills, schedule doctor appointments, etc. Computers have digitised almost everything. Currently, a lot of online medical pharmacies offer home delivery of prescription medications to its customers. The way diseases are identified and treated in the field of medicine has been revolutionised by computers. They work together with medical equipment to continuously track a patient's blood pressure, heart rate, oxygen saturation, and many other parameters Additionally, a lot of procedures today are carried out remotely using computers and robotic surgical tools.

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Short Essay on Advantages and Disadvantages of Computer [100, 200, 400 Words] With PDF

In this lesson, you will learn how you can write essays on the advantages and disadvantages of computers . Here, I will write three sets of essays on this topic but coving different word limits.

Short essay on advantages and disadvantages of computer in 100 words, short essay on advantages and disadvantages of computer in 200 words, short essay on advantages and disadvantages of computer in 400 words.

Feature image of Short Essay on Advantages and Disadvantages of Computer

There was a time when we had to do calculations and solve problems manually. Nowadays, a computer can do the same in a fraction of a second. Computers have now become a necessity in our lives. From learning about new things to making new friends, from students doing their school projects to multinational companies storing their employee data, these days everything is done on computers. Using computers has made work easier and faster.

However, computers do have some disadvantages. As computers are doing all the work, the need for human employees has reduced which has added to the problem of unemployment. Online hacking, fraud and cyber crimes have also increased. But if we take a few measures to keep ourselves safe, computers are indeed great!

Today, as the world is modernising, computers have become a necessity in our lives. Computers can process instructions and solve problems in just a fraction of a second. They can store a huge amount of data and thus, help banks, hospitals, government organisations as well as other companies to store all their data digitally which makes work a lot easier.

Computers also allow us to access the internet and connect with the world. Because of computers, we can now watch movies at home, order groceries, book cabs, buses, trains and flights, and send and receive money online. We can learn new things, make new friends and talk to different people using the internet.

However, computers do have some disadvantages. Because computers are so fast and versatile, the need for human employees has reduced which has led to the loss of jobs and added to the problem of unemployment. Online hacking, fraud and stealing of personal information have also become common as so much of our information is stored online.

A lot of people have also gotten addicted to playing games or binge-watching movies and shows on their computers. This is harmful to their health and can lead to physical issues in the long run. That’s why we must use computers in a way that is good for us and doesn’t cause us any harm.

Today, computers have become an important part of our lives. This machine has made many complicated tasks a lot easier and faster for people and organisations like banks, hospitals, post offices, government organisations as well as small and large companies.

Computers allow us to access the internet and connect with the world. Because of computers, we can now watch movies and dramas from all over the world while sitting at home. We can order groceries, and book cabs, buses, trains and flights online. We can also send and receive money via online banking without ever having to set foot in a bank.

Computers have also helped people learn new things which wouldn’t have been possible in an era when computers didn’t exist. One no longer needs to go to the library and search for books. Now, one can simply borrow a book from any online library as well as buy online copies of those books at a much cheaper price.

This has reduced the need for physical books and copies which in turn has reduced the need for paper production. Computers have also helped us connect with people from different parts of the world and make friends with them. It has helped us learn about different countries, cultures, and people and has helped us become more understanding and welcoming.

Computers have a lot of advantages but they do come with a few disadvantages as well. Because computers are so fast and versatile, the need for human employees has reduced which has led to the loss of jobs and added to the problem of unemployment. This problem is only going to escalate in the future as more and more advancements are made in the field of computer technology.

Online hacking, fraud and stealing of personal information have also become common as so much of our information is stored online. One wrong click and we can lose a lot of our hard-earned money. What’s worse is that such hackers and scammers target old and illiterate people who are not very familiar with the technology. Many youngsters today spend a lot of their time playing computer games or binge-watching shows full of negativity online. This affects their physical and mental health in the long run.

Nowadays, computers have become a necessity in our lives and we cannot deny that. And as is the case with everything else, computers do have their own advantages and disadvantages. We must be mindful and use computers in a way that is good for us and doesn’t cause us any harm.

I have adopted a simplistic approach to writing essays on the topic for a better understanding of all kinds of students. If you still have any doubts regarding this context, kindly let me know through the comment section below. Keep browsing our website for more such sessions.

Paragraph Writing
Computer Paragraph

Paragraph on Computers

A computer is an electronic device that needs an operator to give directions. Learn how to write a paragraph on the computer by going through the samples given in the article.

Computer Paragraph in 100 Words
Computer Paragraph in 150 Words
Computer Paragraph in 200 Words
Computer Paragraph in 250 Words

Frequently Asked Questions on Computer

In this ever-changing modern world, it has become really hard to live without computers. Everything has become digitalised, and computers have made work easier and smoother. All the information which might get missed by humans is stored in the computer. Read the following samples for more information on computers.

Paragraph on the Computer in 100 Words

A computer is an electronic device that was discovered by Charles Babbage. He is known as the father of computers. There are various parts to a computer. The four major parts of a computer are the mouse, keyboard, monitor and CPU. With computers, we can send and receive messages through emails and save important information. It helps to store and modify data. Nowadays, computers are used in schools, banks, offices, etc., and it is now impossible to survive without computers. In order to run any organisation, institution, or any other office, a computer is a must. Computers have made life easier for people of different age groups.

Paragraph on the Computer in 150 Words

Charles Babbage is the father of computers. It is an electronic gadget that is used to store and process data. The features which are found in a computer are a notepad, calculator, paint tool, etc. A computer can be used to store, receive, or send information via different mediums. A computer is a reliable gadget that can store all your private information with security protection. In order to operate a computer, we need an operating system and someone to operate it. If you know how to operate, then it is easier for you to handle any kind of job. If you are not well aware of using a computer, then you will have to be dependent on someone for your work. There is no job that is impossible with the computer. Every day, scientists are working really hard to find new innovations to improve the performance and quality of computers. Therefore, in today’s changing world, it is necessary for every individual to learn the basics of computers at least.

Paragraph on the Computer in 200 Words

In the 21st century, it is impossible to imagine a life without a computer and internet connection. The invention of computers has brought a lot of changes in people’s lives and has helped in fulfilling people’s dreams. A computer is used in various organisations, schools, institutions, offices, etc. It can be used to store important information with high protection and can also be used to send and receive messages, make calculations, develop software, send and receive emails, etc. The major parts of a computer are the mouse, keyboard, monitor, and CPU, but these gadgets have been improvised with a lot of modifications.

Nowadays, we have become very dependent on technology; therefore, it is difficult to imagine our lives without a computer. To learn any professional course, you must be well-versed in computer usage. Whether a school student or an employee, you must at least know the basics of computers. Along with the increasing usage of computers, they have been updated in many ways, like making it lighter to carry in a bag, making processors faster, etc. With the increasing usage and demands of people, computers have been developed and have made life easier. Starting from simple calculations to weather forecasting, computers have become a part of our lives.

Paragraph on the Computer in 250 Words

A computer is one of the best man-made creations that has been developed to help people in various sectors. It has become such an important part of our lives that we find computers everywhere we go. Starting from our school life till our old age, we have many uses for computers. We have become so much dependent on computers that we are using computers for almost everything we do. It is a device that can store an enormous amount of data in it. We are so much dependent on computers that we do not want to put any pressure on ourselves. We blindly store all our data in a computer with a safety passcode. A computer takes up the responsibility and processes the output in no time, hence making our life easier. It collects the data, processes it and then provides the final result to us within a very short time. People in this day and age have become so reliant on computers that they cannot imagine life without them. Computers are significant because of their widespread use, productivity, and openness. Computers are the most needed innovation due to their incredible benefits. Computers are used in every field, like the education sector, hospitals, hotels, etc. If you go for a CT Scan, X-ray, or ECG, you will need a computer to check your body. In case you want to submit a project, you will need a computer. It has become a part of our lifestyle.

The computer is a remarkable piece of science that man has created to help humanity. Computers are in charge of today’s reality, and they have unquestionably altered people’s lifestyles and the condition of developing countries.

How can I write a computer paragraph?

Who is the father of computers, which is the first computer.

Giant ENIAC (Electrical Numerical Integrator and Calculator) was the first computer and was made by John W. Mauchly and J. Presper Eckert.

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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.

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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Essay on Computer in English for Children and Students

Table of Contents

Essay on Computer: A computer is a machine that can be programmed to perform a set of arithmetic or logical operations automatically. Computers have become an integral part of our lives. They are used in almost every field, from medicine and space exploration to business and communication.

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Computers have made our lives easier in many ways. They help us perform tasks that would otherwise be difficult or impossible. For example, computers can help us keep track of large amounts of information, communicate with others around the world, and entertain us with games and videos.

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 also 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 also 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 also 400 words according to the need and requirement of students.

Short Essay on Computer

Computer essay 10 lines.

Computers are amazing machines of modern technology.
They can store a lot of information in their memory.
You can use a keyboard to give them commands and a printer to get things on paper.
Even kids can use computers because they are easy to handle.
Computers are everywhere, from offices to schools.
They can do many tasks quickly and efficiently.
You can use a mouse, keyboard, and printer with a computer.
Computers are great for learning and getting information from the internet.
But we should be careful online to avoid bad stuff.
In the end, computers have changed our lives and made many things easier.

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. Computer 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. Computer allows us to make changes in the already stored data as well as store new data. It is a new technology which is used in offices, banks, educational institutions, etc.

Computer Essay 2 (150 words)

It is a modern tool which has made life very easy and simple. Computer 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. Computer is the utility of highest efficiency. The first computer was a mechanical computer which was created by the Charles Babbage. However 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. Therefore 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 also 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 also low man power, etc. Now a day, it has become hard to imagine our lives without computer. We often use internet in the computer which gives us lots of required information on any subject in very less time. Therefore 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. However 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. However 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 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 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 also many more. Computer is an electronic machine which is able to calculate and solve big problems. It helps in enhancing our skill level and also get information easily. It is very simple data based machine. Computer 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 used to forecast the information about weather, in printing books, news papers, diagnosing diseases, etc. Moreover computer used to make online railway reservations, ticket booking, hotel or restaurant booking from any place all over the world. It 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 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. However 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 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.

Long Essay on Computer 400 words

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 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 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 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 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 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 also 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 accessed by kids or younger and many more however using some preventive measures we can 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. However it enhances the professional skills of the students and helps in getting job easily.

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Frequently Asked Questions on Computer

What is the definition of a computer.

A computer is an electronic machine that can store, process, and retrieve information. It can do various tasks, like calculations, data storage, and connecting to the internet.

What are the 4 types of computer?

There are four main types of computers: desktop computers, laptop computers, tablet computers, and smartphones. Each type serves different purposes and comes in various sizes.

What is computer introduction?

A computer introduction is a brief explanation of what a computer is and what it can do. It's like an overview of how computers work and their importance in our lives.

What is computer 50 words?

A computer is a device that processes information using electronic circuits. It can perform tasks like calculations, storing data, and connecting to the internet. Computers come in various forms, from big desktops to small smartphones, and play a crucial role in our daily lives.

Who was the father of the computer?

The title father of the computer is often attributed to Charles Babbage. He designed a mechanical computer in the 19th century, known as the Analytical Engine, which laid the foundation for modern computers.

What is the function of RAM and ROM?

RAM (Random Access Memory) stores data that the computer is currently using, like running programs. ROM (Read-Only Memory) stores important instructions that help the computer start up and perform basic functions.

What are the 3 main parts of a computer?

The three main parts of a computer are the central processing unit (CPU), which does the computing, the memory (RAM and ROM), which stores data and instructions, and input/output devices like the keyboard, mouse, and monitor.

What are computer parts?

Computer parts are the components that make up a computer system. These include the CPU, memory, storage devices, input devices (like the keyboard and mouse), output devices (like the monitor and printer), and various internal circuits and connections. Each part plays a specific role in the computer's functioning.

How To Write An Essay On Computer for Children Of Classes 1, 2 And 3

Key Points to Remember When Writing An Essay On Computer For Lower Primary Classes

10 lines on computers for kids, short essay on computer in english for children, long essay on computer for kids, what will your child learn from the essay on computer.

Computers are devices that are central to our everyday lives. When your child writes about the advantages of a computer, they learn about the importance of using this device and also understand the different uses that these devices may have for them. Computers help with class assignments for children, provide a great source of gathering information and are also one of their favourite tools for recreation, for playing video games or watching their favourite movies. Children are savvy with using computers and it will be fascinating for them to learn deeper about these devices through this essay writing exercise. Let us help your child to write an interesting essay on computers:

There are a few essential points that your child needs to remember while writing an essay on the uses of computer(s). Let’s help your child write an essay on computer.

The first step is to let your child structure their ideas (in the head) and think of what to write about computers.
In the second step, let your child note the ideas to form an outline, ensuring they cover all the points while composing the essay.
They will form easy-to-read, short and simple sentences from the pointers in the third step.
Encourage your child not to get too deep describing any single idea, and stick to the word limit.
Help your child write with the rhythm, making them cherish writing the essay.
Your child can write about the importance of computers, how this device helps them in different ways, details about parts of a computer, etc.

Computers have taken up a very important part of our lives in various ways. Even children are savvy with the use of computers. Let us help your child write 10 lines as an essay on computers for class 1 and class 2:

A computer is an electronic device.
Charles Babbage first invented the computer.
Computers play an extremely important function in our life.
The machine takes in data as input, processes it, and gives output.
A computer does all the work with the help of an operating system.
A computer understands binary language, which is made up of 0 and 1.
The Central Processing Unit, known as CPU, is the computer’s brain.
The device helps us with our studies to search for new information.
It is also used by elders to do their work like make presentations and send emails.
It is used in schools, banks, offices, hospitals, railway stations, airports and numerous other places.

Computers make up a major part of our life. Children are exposed to the use of computers at an early age for school activities or recreation. Writing an essay on computers may be challenging for kids. Let us help them write an interesting essay on computers in 200 words. They will learn closely about this device through this short paragraph on the computer.

A computer is an electronic device that plays an important role in modern times. Charles Babbage first invented it. The device takes in data as input, processes it, and gives output. A computer does all the work with the help of an operating system. A computer understands the binary language, which is 0 and 1. The CPU (Central Processing Unit ) is called the computer’s brain. The device helps humans in various day-to-day activities. It helps students with their studies. Elders use it to do their work. It is used in schools, banks, offices, hospitals, railway stations, airports, and several other institutions and places. It keeps records and does many tasks. Humans will take a very long time to do many tasks that the computer can do instantly. It makes our life very easy.

Computers are the most important device in modern times. Let us help your child write about the uses of a computer through an essay for class 3:

A computer is an electronic device that plays an important role in modern times. Today we cannot imagine our life without a computer. From studies to booking tickets, paying bills, doing office work, and keeping records, a computer makes everything very easy. Charles Babbage first invented the computer. The device takes in data as input, processes it, and gives output. A computer does all the work with the help of an operating system. A computer understands the binary language, which is 0 and 1. The CPU (Central Processing Unit ) is called the computer’s brain. The device helps us in all our day-to-day tasks. It helps us with our studies. It allows us to take online classes, take online exams, do research and gather information for our assignments. Even elders use computers for their work. It is a very useful device in almost every place like schools, banks, offices, hospitals, railway stations, airports, and many others.

We will take a very long time to do many tasks that the computer can do in an instant. It makes our life very easy. It emables us to avoid long queues to pay our bills, and do it online with just a few clicks. With use of the internet, a computer opens the window to a whole world of information that would be very difficult to gather manually. Whatever information we need is just a few taps away in modern times. Computers have made the whole world a small place. Using computers, we can sit at home and connect with our dear ones living far away from us through messages, emails or video calls. In India, the first computer was brought in Kolkata in 1952, and it was named “Siddharth.” It was a new beginning for the country’s development.

When your child writes about computers, they notice the significant role of computers in daily life. They learn interesting facts about computers. Essay writing will play a major role in developing your child’s language skills. It improves their thought process and gives structure to their ideas. It improves their creative writing skills and also their vocabulary. The act of writing also is functional in developing the fine motor skills of your little one.

We hope the above sample essays will help your child look at computers from a closer aspect. It will help your child learn about this device and understand its benefits more closely. Essay writing is one such activity that helps your child till much later in life. The earlier you introduce it to the little ones, the better they get at it with time. We have kept the language of the above write-up very simple so that it’s easy for your child to understand.

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A computer is a programmable device that stores, retrieves, and processes data . The term "computer" was originally given to humans ( human computers ) who performed numerical calculations using mechanical calculators, such as the abacus and slide rule . The term was later given to mechanical devices as they began replacing human computers. Today's computers are electronic devices that accept data ( input ), process that data, produce output , and store ( storage ) the results ( IPOS ).

Computer overview.
History of the computer.

How are computers used today?

What components make up a desktop computer, what parts are needed for a computer to work, computer connections.

Types of computers.

Who makes computers?

Related information.
All computer questions and answers.

Computer overview

Below is a picture of a computer with each of the main components. You can see the desktop computer , flat-panel display , speakers , keyboard , and mouse in the picture below. We've also labeled each of the input devices and output devices .

You can find further information about other types of computers and get a breakdown of the components that make up a desktop computer later on this page.

History of the computer

The first digital computer and what most people think of as a computer was called the ENIAC (Electronic Numerical Integrator and Computer). It was built during World War II (1943-1946) and was designed to help automate the calculations being done by human computers. By doing these calculations on a computer, they could achieve results much faster and with fewer errors.

Early computers like the ENIAC used vacuum tubes and were large (sometimes room size) and only found in businesses, universities, or governments. Later, computers began utilizing transistors and smaller and cheaper parts that allowed the ordinary person to own a computer.

When was the first computer invented?

Today, computers do jobs that used to be complicated much simpler. For example, you can write a letter in a word processor , edit it anytime, spell check , print copies, and send it to someone across the world in seconds. All these activities would have taken someone days, if not months, to do before. Also, these examples are a small fraction of what computers can do.

How are computers used?
How does a computer work?
What are the advantages of using a computer?

Today's desktop computers have some or all the components ( hardware ) and peripherals below. As technology advances, older technologies, such as a floppy disk drive and Zip drive (shown below), are no longer required or included.

Case or Chassis
Optical drive: Blu-ray , CD-ROM , CD-R , CD-RW , or DVD .
CPU (central processing unit)
Floppy disk drive
RAM (random-access memory)
Monitor , LCD (liquid-crystal display), or another display device.
Motherboard
Network card
Power Supply

A computer does not require all the components mentioned above. However, a computer cannot function without having at the very minimum the parts listed below.

Processor - Component that executes instructions from the software and hardware .
Memory - Temporary primary storage for data traveling between the storage and CPU.
Motherboard (with onboard video) - Component that connects all components.
Storage device (e.g., hard drive ) - Slower secondary storage that permanently stores data.

However, if you had a computer with only the minimum parts above, you would be unable to communicate with it until you connected at least one input device (e.g., keyboard ). Also, you would need at least one output device (e.g., monitor ) for you to see what is happening.

Once a computer is set up, running, and connected to a network, you could disconnect the keyboard and monitor and remotely connect . Most servers and computers in data centers are used and controlled remotely.

What does the inside of a computer look like?
How does the computer relate to the human body?

All computers have different types of connections. An example of the back of a personal computer and brief descriptions of each connection is found on our computer connections page.

How to set up a new computer.

Types of computers

Computers can be classified as one of three types of computers: a general-purpose computer , special-purpose computer , or specialized computer .

A general-purpose computer is what most people think of when thinking about a computer and is what this page covers.

A special-purpose computer is embedded in almost all electronic devices and is the most widely-used computer. This computer is designed for a specific task and is found in ATMs , cars, microwaves, TVs , the VCR (video cassette recorder), and other home electronics. See our special-purpose computer page for further information and examples.

A specialized computer is like a general-purpose computer but is designed only to perform one or a few different tasks. See our specialized computer for further information and examples of these computers.

When discussing a computer or a "PC," you're usually referring to a desktop computer found in a home or office. However, the lines of what makes these computers are blurring. Below are different examples of what's considered a computer today.

Desktop computer, laptop, hybrid computer, tablet, and smartphone

The picture above shows several types of computers and computing devices and is an example of their differences. Below is a complete list of general-purpose computers of past and present.

Some computers could use many different classifications. For example, a desktop computer could also be classified as a gaming computer and a personal computer.

Custom-built PC
Desktop computer
Diskless workstation and Thin client
Gaming computer
Hybrid computer
Laptop, portable, notebook computer
Microcomputer
Nanocomputer
PDA (personal digital assistant)
Personal computer
Prebuilt computer
Quantum computer
Stick computer
Supercomputer

Today, there are two types of computers: the PC (IBM compatible) and Apple Mac. Many companies make and build PCs, and if you get all the necessary parts for a computer, you can even build a custom PC. However, with Apple computers, only Apple designs and makes these computers. See our computer companies page for a listing of companies ( OEMs ) that make and build computers.

What type of computer should I buy?
Desktop computer buying tips.
Mac vs. PC.

Related information

How to use a computer.
Basic computer troubleshooting.
How to install computer hardware.
What makes a computer fast and powerful?
How to learn more about computers.
Why should I learn about computers?
Now that I've got a computer, what can I do?
What came before computers and mobile devices?

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How to Write the “Why Computer Science?” Essay

What’s covered:, what is the purpose of the “why computer science” essay, elements of a good computer science essay, computer science essay example, where to get your essay edited.

You will encounter many essay prompts as you start applying to schools, but if you are intent on majoring in computer science or a related field, you will come across the “ Why Computer Science? ” essay archetype. It’s important that you know the importance behind this prompt and what constitutes a good response in order to make your essay stand out.

For more information on writing essays, check out CollegeVine’s extensive essay guides that include everything from general tips, to essay examples, to essay breakdowns that will help you write the essays for over 100 schools.

Colleges ask you to write a “ Why Computer Science? ” essay so you may communicate your passion for computer science, and demonstrate how it aligns with your personal and professional goals. Admissions committees want to see that you have a deep interest and commitment to the field, and that you have a vision for how a degree in computer science will propel your future aspirations.

The essay provides an opportunity to distinguish yourself from other applicants. It’s your chance to showcase your understanding of the discipline, your experiences that sparked or deepened your interest in the field, and your ambitions for future study and career. You can detail how a computer science degree will equip you with the skills and knowledge you need to make a meaningful contribution in this rapidly evolving field.

A well-crafted “ Why Computer Science? ” essay not only convinces the admissions committee of your enthusiasm and commitment to computer science, but also provides a glimpse of your ability to think critically, solve problems, and communicate effectively—essential skills for a computer scientist.

The essay also gives you an opportunity to demonstrate your understanding of the specific computer science program at the college or university you are applying to. You can discuss how the program’s resources, faculty, curriculum, and culture align with your academic interests and career goals. A strong “ Why Computer Science? ” essay shows that you have done your research, and that you are applying to the program not just because you want to study computer science, but because you believe that this particular program is the best fit for you.

Writing an effective “ Why Computer Science ?” essay often requires a blend of two popular college essay archetypes: “ Why This Major? ” and “ Why This College? “.

Explain “Why This Major?”

The “ Why This Major? ” essay is an opportunity for you to dig deep into your motivations and passions for studying Computer Science. It’s about sharing your ‘origin story’ of how your interest in Computer Science took root and blossomed. This part of your essay could recount an early experience with coding, a compelling Computer Science class you took, or a personal project that sparked your fascination.

What was the journey that led you to this major? Was it a particular incident, or did your interest evolve over time? Did you participate in related activities, like coding clubs, online courses, hackathons, or internships?

Importantly, this essay should also shed light on your future aspirations. How does your interest in Computer Science connect to your career goals? What kind of problems do you hope to solve with your degree?

The key for a strong “ Why This Major? ” essay is to make the reader understand your connection to the subject. This is done through explaining your fascination and love for computer science. What emotions do you feel when you are coding? How does it make you feel when you figure out the solution after hours of trying? What aspects of your personality shine when you are coding?

By addressing these questions, you can effectively demonstrate a deep, personal, and genuine connection with the major.

Emphasize “Why This College?”

The “ Why This College? ” component of the essay demonstrates your understanding of the specific university and its Computer Science program. This is where you show that you’ve done your homework about the college, and you know what resources it has to support your academic journey.

What unique opportunities does the university offer for Computer Science students? Are there particular courses, professors, research opportunities, or clubs that align with your interests? Perhaps there’s a study abroad program or an industry partnership that could give you a unique learning experience. Maybe the university has a particular teaching methodology that resonates with you.

Also, think about the larger university community. What aspects of the campus culture, community, location, or extracurricular opportunities enhance your interest in this college? Remember, this is not about general praises but about specific features that align with your goals. How will these resources and opportunities help you explore your interests further and achieve your career goals? How does the university’s vision and mission resonate with your own values and career aspirations?

It’s important when discussing the school’s resources that you always draw a connection between the opportunity and yourself. For example, don’t tell us you want to work with X professor because of their work pioneering regenerative AI. Go a step further and say because of your goal to develop AI surgeons for remote communities, learning how to strengthen AI feedback loops from X professor would bring you one step closer to achieving your dream.

By articulating your thoughts on these aspects, you demonstrate a strong alignment between the college and your academic goals, enhancing your appeal as a prospective student.

Demonstrate a Deep Understanding of Computer Science

As with a traditional “ Why This Major? ” essay, you must exhibit a deep and clear understanding of computer science. Discuss specific areas within the field that pique your interest and why. This could range from artificial intelligence to software development, or from data science to cybersecurity.

What’s important is to not just boast and say “ I have a strong grasp on cybersecurity ”, but instead use your knowledge to show your readers your passion: “ After being bombarded with cyber attack after cyber attack, I explained to my grandparents the concept of end-to-end encryption and how phishing was not the same as a peaceful afternoon on a lake. ”

Make it Fun!

Students make the mistake of thinking their college essays have to be serious and hyper-professional. While you don’t want to be throwing around slang and want to present yourself in a positive light, you shouldn’t feel like you’re not allowed to have fun with your essay. Let your personality shine and crack a few jokes.

You can, and should, also get creative with your essay. A great way to do this in a computer science essay is to incorporate lines of code or write the essay like you are writing out code.

Now we will go over a real “ Why Computer Science? ” essay a student submitted and explore what the essay did well, and where there is room for improvement.

Please note: Looking at examples of real essays students have submitted to colleges can be very beneficial to get inspiration for your essays. You should never copy or plagiarize from these examples when writing your own essays. Colleges can tell when an essay isn’t genuine and will not view students favorably if they plagiarized.

I held my breath and hit RUN. Yes! A plump white cat jumped out and began to catch the falling pizzas. Although my Fat Cat project seems simple now, it was the beginning of an enthusiastic passion for computer science. Four years and thousands of hours of programming later, that passion has grown into an intense desire to explore how computer science can serve society. Every day, surrounded by technology that can recognize my face and recommend scarily-specific ads, I’m reminded of Uncle Ben’s advice to a young Spiderman: “with great power comes great responsibility”. Likewise, the need to ensure digital equality has skyrocketed with AI’s far-reaching presence in society; and I believe that digital fairness starts with equality in education.

The unique use of threads at the College of Computing perfectly matches my interests in AI and its potential use in education; the path of combined threads on Intelligence and People gives me the rare opportunity to delve deep into both areas. I’m particularly intrigued by the rich sets of both knowledge-based and data-driven intelligence courses, as I believe AI should not only show correlation of events, but also provide insight for why they occur.

In my four years as an enthusiastic online English tutor, I’ve worked hard to help students overcome both financial and technological obstacles in hopes of bringing quality education to people from diverse backgrounds. For this reason, I’m extremely excited by the many courses in the People thread that focus on education and human-centered technology. I’d love to explore how to integrate AI technology into the teaching process to make education more available, affordable, and effective for people everywhere. And with the innumerable opportunities that Georgia Tech has to offer, I know that I will be able to go further here than anywhere else.

What the Essay Did Well

This essay perfectly accomplishes the two key parts of a “ Why Computer Science? ” essay: answering “ Why This Major? ” and “ Why This College? ”. Not to mention, we get a lot of insight into this student and what they care about beyond computer science, and a fun hook at the beginning.

Starting with the “ Why This Major? ” aspect of the response, this essay demonstrates what got the student into computer science, why they are passionate about the subject, and what their goals are. They show us their introduction to the world of CS with an engaging hook: “I held my breath and hit RUN. Yes! A plump white cat jumped out and began to catch the falling pizzas. ” We then see this is a core passion because they spent “ Four years and thousands of hours ,” coding.

The student shows us why they care about AI with the sentence, “ Every day, surrounded by technology that can recognize my face and recommend scarily-specific ads ,” which makes the topic personal by demonstrating their fear at AI’s capabilities. But, rather than let panic overwhelm them, the student calls upon Spiderman and tells us their goal of establishing digital equality through education. This provides a great basis for the rest of the essay, as it thoroughly explains the students motivations and goals, and demonstrates their appreciation for interdisciplinary topics.

Then, the essay shifts into answering “ Why This College? ”, which it does very well by honing in on a unique facet of Georgia Tech’s College of Computing: threads. This is a great example of how to provide depth to the school resources you mention. The student describes the two threads and not only why the combination is important to them, but how their previous experiences (i.e. online English tutor) correlate to the values of the thread: “ For this reason, I’m extremely excited by the many courses in the People thread that focus on education and human-centered technology. ”

What Could Be Improved

This essay does a good job covering the basics of the prompt, but it could be elevated with more nuance and detail. The biggest thing missing from this essay is a strong core to tie everything together. What do we mean by that? We want to see a common theme, anecdote, or motivation that is weaved throughout the entire essay to connect everything. Take the Spiderman quote for example. If this was expanded, it could have been the perfect core for this essay.

Underlying this student’s interest in AI is a passion for social justice, so they could have used the quote about power and responsibility to talk about existing injustices with AI and how once they have the power to create AI they will act responsibly and help affected communities. They are clearly passionate about equality of education, but there is a disconnect between education and AI that comes from a lack of detail. To strengthen the core of the essay, this student needs to include real-world examples of how AI is fostering inequities in education. This takes their essay from theoretical to practical.

Whether you’re a seasoned writer or a novice trying your hand at college application essays, the review and editing process is crucial. A fresh set of eyes can provide valuable insights into the clarity, coherence, and impact of your writing. Our free Peer Essay Review tool offers a unique platform to get your essay reviewed by another student. Peer reviews can often uncover gaps, provide new insights or enhance the clarity of your essay, making your arguments more compelling. The best part? You can return the favor by reviewing other students’ essays, which is a great way to hone your own writing and critical thinking skills.

For a more professional touch, consider getting your essay reviewed by a college admissions expert . CollegeVine advisors have years of experience helping students refine their writing and successfully apply to top-tier schools. They can provide specific advice on how to showcase your strengths, address any weaknesses, and generally present yourself in the best possible light.

What is Computer? Definition, Characteristics and Classification

A computer is an electronic device that can store, manipulate, and process data according to a set of instructions. Know more about the Computer and its Classification, Characteristics, Functionality.

Table of Contents

What is a Computer?

In the modern world, computers have become an integral part of our daily lives, revolutionizing the way we work, communicate, and entertain ourselves. From desktops to laptops, tablets to smartphones, computers come in various forms, yet many people are still unfamiliar with their inner workings and potential. In this article, we will discuss everything about the Computer Definition, Characteristics, Components, Functionality, and Classification .

Definition of Computer

A computer is an electronic device wherein we need to input raw data to be processed with a set of programs to produce a desirable output . Computers have the ability to store, process, and manipulate data. The term “computer” is derived from the Latin word “computare,” which means “to calculate.” A computer is made to run programs and apps by using both hardware and software. It also has a memory to store data, programs, and what they produce.

10 Different Definitions of a Computer

Electronic device: A computer in generally termed as an electronic device that transmits data using electronic facilities and software programs
Data processor: The computer processes data using arithmetic, logical and input/output operations
Information machine: By processing multiple algorithms and computations, a computer gets up a meaningful definition to what we have searched
Digital device: A computer manipulates, stores, and retrieves data represented in binary form to present it can understanding manner for humans
Universal machine: A computer is also known as a universal machine as it can solve problems of people by understanding their program and not by any other factor
Communication tool: Computer is a universal communication tool as it provides the facility to connect, collaborate or transfer of messages through a network and the internet
Problem solver: Computers are designed to solve problems that can affect or slow down daily human tasks, therefore, it is a problem solver
Multifunctional device: Multifunctionality is the power of a computer as it can perform more than 1 task at a time and that too with utmost perfection
Information processor: Computers are fitted with processors that process raw data into organized and meaningful outputs
Automation tool: Computers have the functionality to automate the repetitive tasks and enhance productive by saving time

Characteristics of Computer

Computers are now an integral part of our daily lives, from managing student records in schools to handling patient records in hospitals. They have significantly simplified our tasks. Now, we can quickly access stored data and solve complex problems in just seconds. Some of the characteristics of Computers are listed below-

Saves Time: A computer saves time by completing tasks quicker and more efficiently. For example, it can solve big complex problems within seconds which can save many minutes of ours.
Internet: Computers connect us to the internet which can help us to know important information from around the world, it can connect us with people from around the world through social networking sites, etc.
Storage: The computer gives us enough storage space that can be used to store a large amount of data including your projects, ebooks, documents, movies, pictures, songs, etc.
Entertainment: Computers are also a big source of entertainment as you can play games, listen to songs, watch movies, and can also use social networking sites.
Organized Data: It not only stores the data for you for also organizes the data for you. You can create different folders for different types of data and can easily access them when required.
Helps the physically challenged: Computers are a big boon for the physically challenged people as Stephen Hawking, who was not able to speak used the computer to speak. It also can be used to help blind people by installing special software to read what is on the screen.

Features OF Computer

We have discussed a few points that will highlight the different features of computers. These features collectively contribute to the versatility and functionality of computers.

Processing Power: Computers can execute instructions and perform calculations quickly.
Storage Capacity: They can store vast amounts of data, from documents to multimedia files.
Memory (RAM): Temporary storage used for actively running programs and processes.
Input Devices: Keyboards, mouse, and other peripherals allow users to input data.
Output Data: Monitors, printers, and speakers display or produce results.
Upgradability: Components like RAM, storage, and graphics cards can be upgraded.
Portability: Laptops and tablets offer mobility compared to desktop computers.
User Interface: Graphical user interfaces (GUIs) or command-line interfaces for interaction.
Security Features: Passwords, firewalls, and antivirus tools protect against unauthorized access.
Power Management: Features to optimize energy consumption.

History of Computer

To understand the development of computers, and how they evolved from simple mechanical devices to the complex electronic machines that we use today. The knowledge can help to appreciate the challenges that computer scientists have faced over the years and the ingenuity they have shown in overcoming them.

Studying the history of computers can help to anticipate future developments in the field. The history of computers can be traced back to the ancient Greeks, who used the abacus to perform simple calculations. In the 17th century, Blaise Pascal invented the mechanical calculator, which could perform more complex calculations. In the 19th century, Charles Babbage designed the Analytical Engine, which is considered to be the first general-purpose computer. By understanding the history of computers that have shaped the development in the past.

Classification of Computers

Computers come in various types, primarily categorized by their data handling capacity and physical size. Based on the size, computers are 5 types namely, Micro Computer, Mini Computer, Mainframe Computer, Super Computer and Work stations. Whereas, based on data handling capacity, there are 3 types of computers namely analogue computers, digital computers, and hybrid computers. All the different types of computers perform different tasks and have been designed differently. For your reference, we have discussed all the types of computers and you can scroll through the page to read them all.

Based on Size

There are various types of computers available in the markets which are of different sizes. These computers are different from each other with respect to the amount of work they can do or the amount of data they can hold. Here we have classified the main 5 types of computers based on their size and have also provided the details regarding the same.

1. Micro Computer:

Micro Computers are mainly single-user computers and have comparatively lesser storage and speed than other computers. The first microcomputer was built with 8-bit microprocessor chips as these computers use microprocessors as CPU. Laptops, smartphones, desktop computers, etc. are all examples of microcomputers. These computers are made for everyday tasks like browsing the web and using programs like Microsoft Office MS Word etc..

2. Mini Computer:

Midrange computers or Mini-computers are multi-user computers designed in a way so as to entertain multiple users simultaneously. Small businesses and firms use these computers for their specific purposes. For example- a company or organization may use mini computers to look after the employee directory which may handle the payment history of its employees and any schools may use them to keep records of the students or for admission purposes.

3. Mainframe Computer:

Mainframe Computers are also not designed for single users, rather it is a multi-user computer that can handle thousands of users all at once. Large industries and government organizations utilize these computers to facilitate their business operations by storing substantial volumes of data. Banks and insurance companies use these computers to store the data of their customers, their policies, etc.

4. Super Computer:

Super Computer is the fastest type of computer amongst all and is also the most expensive. They can store a large number of data and can perform the most complex tasks within seconds. They can also execute millions of instructions per second. These computers are designed specifically to handle specific tasks such as weather forecasting, space research, and more. Supercomputers are also used by NASA for their Satellite launching.

5. Work Stations:

Workstations are single-user computers and have more powerful microprocessors than a microcomputer. When it comes to speed and storage capacity, it comes between a personal computer and a mini-computer. The most common uses of a workstation are desktop publishing, engineering designs, etc.

Based on Data Handling Capacity

Computers can be divided into 3 types based on their data handling capacity namely, analog, digital, and hybrid computers. These are different from each other with respect to the type of work they can do and the amount of data they can handle. We have discussed these types of computers in detail below.

Analog Computer:

The main function of Analog Computers is to process analog data. The data that changes frequently and does not have discrete values are called data and the analog computers are used at places where we have approximate values e.g., speed, temperature, pressure, etc. These computers can pick data from the devices without converting it into machine language. Some common examples of analog computers are speedometers, thermometers, etc.

Digital Computer:

Digital Computers are designed in a way so that they can perform calculations and logical operations at high speed. These computers input raw data and with the help of the programs stored in their memory, it gives the final output. Digital computers can only understand binary language i.e., 0 and 1 hence, the raw data to be given as input is converted into 0 and 1 and then it is processed. Examples are laptops, desktops, smartphones, etc.

Hybrid Computer:

Hybrid, as the name suggests is a mixture of both analog and digital computers. Hybrid computers are as fast as analog computers and also have accuracy like that of digital computers. These computers can process both continuous and discrete data as they accept analog signals and then convert them into digital signals before processing. Some common uses of Hybrid computers are in airplanes, hospitals, etc.

Components of a Computer

A computer mainly has two components i.e. hardware and software wherein the components of the computers having a physical structure such as wires, transistors, circuits, and hard disk make up the hardware whereas the programs and data make up the software. Some other important components of a Computer are discussed below.

Central Processing Unit (CPU)

Often referred to as the “brain” of the computer, the CPU is responsible for executing instructions and performing calculations. It interprets and carries out the commands from software and hardware components.

Computer Memory

Computers have different types of memory for temporary and permanent data storage. Random Access Memory (RAM) provides fast but volatile storage, while the hard drive or Solid-State Drive (SSD) offers non-volatile, long-term storage for programs and files.

Arithmetic Logic Unit (ALU)

An arithmetic logic unit (ALU) is a key component of a computer’s central processor unit. The ALU is part of a central processing unit (CPU) and performs all arithmetic and logic operations that must be performed on instruction words. The ALU is split into two parts in some microprocessor architectures: the AU and the LU.

Input Devices of Computer

Input Devices of the Computer enable users to interact with the computer. These are tools used to provide information and commands to the computer. Examples include keyboards, mice, touchscreens, scanners, and microphones. They allow us to input commands, data, and instructions for the computer to process. Keyboards and mouse allow users to input text, navigate interfaces, and interact with software. Tochpads offer similar functions on laptops and touch-enabled devices. Microphones capture audio input, enabling voice commands, voice recordings, and communication in applications like voice chat and video conferencing.

Output Devices of Computer

Output Devices of Computers display or transmit processed information to users. These are tools that display or produce information from the computer. Common examples include monitors, printers, speakers, and headphones. They present the results of computations, provide visual feedback, or produce audio output. Monitors show visual data like tests and images, while printers create physical copies of documents. Speakers and headphones produce sound output, allowing us to hear audio from videos, music, or other multimedia on our computer.

Motherboard

The motherboard acts as the central hub connecting all the computer’s components. It houses the CPU, memory modules, expansion slots, and connectors, facilitating communication and data transfer between different parts of the system.

Functionality of a Computer

Computers possess remarkable versatility and can perform a multitude of tasks. Some basic Functionalities and uses of a Computer are discussed below.

Data Processing: Computers excel at processing vast amounts of data quickly and accurately. They can manipulate numbers, perform complex calculations, analyze patterns, and generate reports.
Information Storage: With their vast storage capacities, computers can store massive amounts of information, from personal files to entire databases. They enable quick retrieval and organization of data for efficient access and analysis.
Communication: Computers facilitate seamless communication through various means, such as email, instant messaging, video conferencing, and social media. They enable global connectivity and information sharing on an unprecedented scale.
Multimedia and Entertainment: Computers serve as multimedia powerhouses, allowing users to watch movies, listen to music, view images, play games, and edit videos. They provide immersive experiences and entertainment options for users of all ages

Finally, a computer is a remarkable electronic device that processes data, performs calculations, and executes tasks based on programmed instructions. It comprises various components working together to facilitate the input, processing, and output of information. From their ability to process data at incredible speeds to their role in communication, entertainment, and information storage, computers have revolutionized every aspect of our lives. The Computer was invented by Charles Babbage. So he is known as the father of computers .

Some Interesting Facts About Computer

Below we have discussed a few interesting Facts about computers:

The first computer programmer was Lady Augusta Ada Lovelace, who wrote the first algorithm for Charles Babbage’s Analytical Engine in the 1840s.
The word “Bug” in the context of computer glickes originated in 1947 when a moth caused a malfunction in the Harvard Mark II computer.
The world’s first computer mouse was invented by Douglas Engelbart in 1964 and was made of wood.
The term “Byte” was coined by Dr. Werner Buchholz in 1956 while working on IBM’s Stretch computer.
The first electronic computer, ENIAC, weighed around 30 tons and used more than 17,000 vacuum tubes.
The Apollo 11 guidance computer, which landed humans on the moon in 1969, had less processing power than a modern smartphone.

Generation of Computer (1st to 5th)- Read Now

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Q1. What is computer?

Ans. A computer is an electronic device wherein we need to input raw data to be processed with a set of programs to produce a desirable output. Computers also have the capacity to store, process and manipulate the data.

Q2. What are Super Computers?

Ans. Super Computers is the fastest type of computer amongst all and is also the most expensive. They can store a large number of data and can perform the most complex task within seconds. They can also execute millions of instructions per second.

Q3. How many types of Computers are there?

Ans. The computers can classified on the basis of their size and their data handling capacity. There are 5 types of computers based on the size whereas there are 3 types of computers based on their data handling capacity.

Q4. What are Hybrid Computers?

Ans. Hybrid computers are fast as an analog computer and also has accuracy like that of digital computers. These computers can process both continuous and discrete data as it accepts analog signal and then converts them into digital signals before processing. Some common uses of Hybrid computers are in airplanes, hospitals, etc.

Q5. What is the full form of COMPUTER?

Ans. The full form of COMPUTER is Common Operating Machine Purposely Used for Technological and Educational Research.

What are the 4 types of computer?

Ans. Four types of computer are Supercomputers. Mainframe computers. Minicomputers. Personal computers (PCs) or microcomputers.

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How to Write a Short Essay

Last Updated: January 17, 2024 Fact Checked

This article was co-authored by Christopher Taylor, PhD . Christopher Taylor is an Adjunct Assistant Professor of English at Austin Community College in Texas. He received his PhD in English Literature and Medieval Studies from the University of Texas at Austin in 2014. There are 12 references cited in this article, which can be found at the bottom of the page. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. This article has been viewed 114,573 times.

Essay writing is a common assignment in high school or college courses, especially within the humanities. You’ll also be asked to write essays for college admissions and scholarships. In a short essay (250-500 words), you will need to provide an introduction with a thesis, a body, and a conclusion, as you would with a longer essay. Depending on the essay requirements, you may also need to do academic or online research to find sources to back up your claims.

Picking a Topic and Gathering Research

If you have any questions about the topic, ask your instructor. If your essay doesn't respond to the prompt, you likely won't receive full credit.

Step 2 Choose a single arguable point for your brief essay.

If you're writing an essay for an in-class test or for an application, tailor the essay to the given prompt and topic. Quickly brainstorm a few ideas; for example, think of positive things you can say about yourself for a college-entrance essay.
For example, the topic “depression in American literature” is far too broad. Narrow down your topic to something like “Willie Loman’s depression in Death of a Salesman .”
Or, you could write about a narrow topic like “the increase in the USA’s national debt in the 1950s” rather than a broad topic like “the American economy in the 20th century.”

Step 3 Find 1-2 appropriate secondary sources in an online research database.

Depending on the field in which you’re writing the essay—e.g., hard sciences, sociology, humanities, etc.—your instructor will direct you towards appropriate databases. For example, if you’re writing a high-school or college-level essay for your English class, visit online literary databases like JSTOR, LION, and the MLA Bibliography.
If you're writing the essay for a college or graduate-school application, it's unlikely that you'll need to include any secondary sources.
If you're writing a timed or in-class essay, you may not be able to find research articles. But, still do draw information from texts and sources you've studied both in and out of class, and build from points made in any provided reading passages.

If you’re writing about current events or journalism topics, read articles from well-known news sites like CNN or the BBC.
Avoid citing unreliable websites like blogs or any sites that have a clear bias about the topic they’re reporting on.

Composing the Essay

If you write the essay without outlining, the essay will be poorly organized.

This thesis statement is far too weak: “ Death of a Salesman shows the difficulty of living in America after WWII.”
Instead, hone your thesis to something like: “Arthur Miller uses Death of a Salesman to show that the American Dream is materialist and impractical.”

Step 3 Use your introduction paragraph to explain the essay’s topic.

So, avoid beginning the paragraph by writing something like, “Since the beginning of time, all people have been consumed with the desire for their father’s approval.”
Instead, write something like, “In the play Death of a Salesman , Willie Loman’s sons compete for their father’s approval through various masculine displays."
Then, you can say, "To examine this topic, I will perform a close reading of several key passages of the play and present analyses by noted Arthur Miller scholars."

Step 4 Keep the introduction and conclusion under 75 words each.

In a short essay, the conclusion should do nothing more than briefly restate your main claim and remind readers of the evidence you provided.

Step 5 Use body paragraphs to prove various aspects of your central argument.

So, take the example about Death of a Salesman . The first body paragraph could discuss the ways in which Willie’s sons try to impress him.
The second body paragraph could dive into Willie’s hopelessness and despair, and the third paragraph could discuss how Miller uses his characters to show the flaws in their understanding of the American Dream.

Step 6 Add information from your research sources to strengthen claims.

Always cite your sources so you avoid charges of plagiarism. Check with your instructor (or the essay prompt) and find out what citation style you should use.
For example, if you’re summarizing the inflation of the American dollar during the 1930s, provide 2 or 3 years and inflation-rate percentages. Don’t provide a full-paragraph summary of the economic decline.
If you're writing an in-class essay and don't have time to perform any research, you don't need to incorporate outside sources. But, it will impress your teacher if you quote from a reading passage or bring up pertinent knowledge you may have gained during the class.

Step 7 Ask someone else to read your first draft.

If no one agrees to read the essay, read over your own first draft and look for errors or spots where you could clarify your meaning. Reading the essay out loud often helps, as you’ll be able to hear sentences that aren’t quite coherent.
This step does not apply to essays written during a timed or in-class exam, as you won't be able to ask peers to read your work.

Step 8 Revise the first draft into the final essay.

It’s always a mistake to submit an unrevised first draft, whether for a grade, for admissions, or for a scholarship essay.
However, if you're writing an essay for a timed exam, it's okay if you don't have enough time to combine multiple drafts before the time runs out.

Condensing Your Essay

Step 1 Quote only from secondary sources that are related to your topic.

So, if you’re writing about Death of a Salesman , an article about symbolism in Arthur Miller’s plays would be useful. But, an article about the average cost of Midwestern hotels in the 1940s would be irrelevant.
If you’re writing a scholarship essay, double-check the instructions to clarify what types of sources you’re allowed to use.

Step 2 Remove verbiage to keep your essay under the word count.

A common cliche you might find in an essay is a statement like, "I'm the hardest working student at my school."
For example, this sentence is too verbose: “I have been a relentlessly stellar student throughout my entire high school career since I am a seriously dedicated reader and thoroughly apply myself to every assignment I receive in class.”
Shortened, it could read: “I was a stellar student throughout my high school career since I was a dedicated reader and applied myself to every assignment I received.”

Avoid writing something like, “Willie Loman can be seen as having achieved little through his life because he is not respected by his sons and is not valued by his co-workers.”
Instead, write, “Arthur Miller shows readers that Willie’s life accomplishments have amounted to little. Willie’s sons do not look up to him, and his co-workers treat him without respect.”

Step 4 Present only the most relevant argument in your essay.

For example, if you’re trying to prove that WWII pulled the USA out of the Great Depression, focus strictly on an economic argument.
Avoid bringing in other, less convincing topics. For example, don’t dedicate a paragraph to discussing how much it cost the USA to build fighter jets in 1944.

Short Essay Template and Example

Expert Q&A

When composing the text of your essay, resist the temptation to pull words from a thesaurus in an attempt to sound academic or intelligent. Thanks Helpful 0 Not Helpful 0
If your high school or college has an online or in-person writing center, schedule an appointment. Taking advantage of this type of service can improve your essay and help you recognize structural or grammatical problems you would not have noticed otherwise. Thanks Helpful 0 Not Helpful 0

↑ https://owl.purdue.edu/owl/general_writing/common_writing_assignments/research_papers/choosing_a_topic.html
↑ https://monroecollege.libguides.com/c.php?g=589208&p=4072926
↑ https://www.utep.edu/extendeduniversity/utepconnect/blog/march-2017/4-ways-to-differentiate-a-good-source-from-a-bad-source.html
↑ https://www.grammarly.com/blog/essay-outline/
↑ https://writingcenter.unc.edu/tips-and-tools/thesis-statements/
↑ https://libguides.newcastle.edu.au/how-to-write-an-essay/essay-introduction
↑ https://lsa.umich.edu/sweetland/undergraduates/writing-guides/how-do-i-write-an-intro--conclusion----body-paragraph.html
↑ https://mlpp.pressbooks.pub/writingsuccess/chapter/8-3-drafting/
↑ https://www.trentu.ca/academicskills/how-guides/how-write-university/how-approach-any-assignment/writing-english-essay/using-secondary
↑ https://patch.com/michigan/berkley/bp--how-to-shorten-your-college-essay-without-ruining-it
↑ https://writing.wisc.edu/handbook/style/ccs_activevoice/
↑ https://wordcounter.net/blog/2016/01/26/101025_how-to-reduce-essay-word-count.html

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