Essay on Computer

Students are often asked to write an essay on Computer in their schools and colleges. And if you’re also looking for the same, we have created 100-word, 250-word, and 500-word essays on the topic.

Let’s take a look…

100 Words Essay on Computer


A computer is an electronic device used for carrying out complex calculations and operations. It is a machine with a huge capacity to store data and information.


Computers are used in almost all areas of life today. It is used in offices, schools, hospitals, banks, and other places. It helps in making work easier and faster. It also helps in keeping records and storing data.


The main advantage of computers is that they can do calculations and tasks very quickly and accurately. They also help to save time and energy. They also help us to store and access large amounts of data.


The main disadvantage of computers is that they are vulnerable to viruses and other malicious software. They can also be hacked, which can lead to the loss of data.


Overall, computers are an essential part of modern life. They are powerful tools that can help us in many ways. They are also very useful in the fields of science and technology.

250 Words Essay on Computer


A computer is a device that can be programmed to process, store, and retrieve data with the help of a few instructions. It is one of the most important inventions of the 20th century, revolutionizing the way people work and communicate. It can be used for a wide range of tasks, from basic data processing to complex calculations and simulations.

History of Computers

The history of computers began with the invention of the mechanical calculator in the early 19th century. Soon after, Charles Babbage designed the first programmable computer, the Analytical Engine. By the mid-20th century, computers had become an integral part of business, military, and scientific research. In the late 20th century, computers began to be used in everyday life, becoming more accessible to the general public.

Types of Computers

Today, there are many types of computers, ranging from small handheld devices to powerful supercomputers. The most common types are desktop computers, laptops, tablets, and smartphones. Each type has its own advantages and disadvantages, and is best suited for different tasks. For example, a laptop is ideal for portability, while a desktop is better for gaming or high-end tasks.

Advantages of Computers

The main advantage of computers is their ability to store, process, and retrieve information quickly and accurately. They can also be used to automate mundane tasks, such as data entry, freeing up time and resources for more important tasks. In addition, computers can be connected to the internet, allowing for communication and access to a vast amount of data.


In conclusion, computers have revolutionized the way we work and live. They are indispensable tools in today’s world and are used for everything from entertainment to business. Despite their advantages, computers also have some drawbacks, such as the potential for data breaches and computer viruses. With proper security measures, however, computers can be used safely and securely.

500 Words Essay on Computer


A computer is an electronic machine that is used for storing and processing data. It is a fundamental tool for modern life, used for tasks ranging from basic communication to complex calculations. Computers have revolutionized the way we live, work and play, and have drastically altered the way we interact with one another and the world around us.

History of Computers

The first computers were developed in the 1940s and 1950s, and were used primarily for military and scientific purposes. During the 1960s, computers began to be used for business applications and data processing. In the 1970s, the invention of the microprocessor enabled the development of the personal computer, which brought computing power to the masses. Since then, computers have become increasingly powerful, and have found applications in virtually every area of life.

Types of Computers

Today, there are a wide variety of computer types, ranging from small handheld devices to large mainframe machines. Common types of computers include desktop computers, laptop computers, tablets, and smartphones. Each type is designed to meet specific needs and requirements.

Components of a Computer

The components of a computer system can be divided into two main categories: hardware and software. Hardware refers to the physical components of the computer, such as the processor, memory, storage, and peripheral devices. Software refers to the programs and operating system that are used to control the hardware components.

Uses of Computers

Computers are used in a wide variety of applications, from the most mundane tasks to the most complex calculations. They are used in industries such as banking, finance, retail, manufacturing, and healthcare. They are also used for entertainment and communication, such as playing video games, browsing the internet, and sending emails.


The computer is an essential tool in modern life and has revolutionized the way we work, communicate, and entertain ourselves. Its many components and uses make it a powerful and versatile machine that can be used for a wide range of tasks. With the continued advancement of technology, computers will continue to be an integral part of our lives.

That’s it! I hope the essay helped you.

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