What is a Computer? | Explain Applications of Computer

What is a Computer? | Explain Applications of Computer

If you are wondering what a computer is and what it does, you’ve come to the right place. We will cover a variety of topics in this article, including what computers are, what they do, and some of the various types of computers you may encounter. In addition, we will discuss computer history and how it has evolved over time. Continue reading for more information.


The presence of computer applications has significantly transformed the way we live our lives today, from communicating, learning, working, and playing, to our interaction with the world around us.

What is a Computer?

Computers process data and execute instructions. This type of power source is capable of performing more sophisticated tasks, such as running software and networks, as well as powering modern gadgets like smartphones, tablets, and laptops. 

A computer, which consists of both hardware components and software components, stores, processes, and manages data.

Components of Computer:

The computer is composed of hardware components such as a central processing unit (CPU), memory, and input/output devices (I/O), such as a keyboard, mouse, and monitor. Computers have a central processing unit (CPU), which is responsible for executing instructions and performing calculations. 

The processing, data, and instructions are stored in memory. A user’s interaction with a computer is enabled by I/O devices. The results of the computer’s processing can also be viewed via I/O devices.

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Applications of computer

Computer applications can be divided into several categories.


Enterprise resource planning (ERP) systems are one of the most important computer applications for businesses. Integrated enterprise resource planning systems are designed to manage and integrate a company’s core business processes, including supply chain management, financial management, human resources management, and customer relations management. 

Businesses can manage their operations more efficiently and reduce costs by using enterprise resource planning systems. Furthermore, ERP systems also enable businesses to access real-time data and insights, which allows them to make more informed decisions.


CRM (customer relationship management) software is also used by businesses to manage customer interactions. With CRM software, businesses can gather, analyze, and track customer data, enabling them to determine customer preferences, trends, and behaviors. Customer data may be used to provide tailored offers to customers, thereby improving customer loyalty and sales.

Businesses rely on data analytics software to make sense of the huge amount of data they generate. For example, Tableau and QlikView can be used to understand data and make better decisions.


It is well known that computer applications can be beneficial in the field of education in a wide variety of ways. For instance, they enable students to access course materials more easily and quickly, and they also enhance the learning experience by providing a more interactive environment.

Computer applications have been introduced into the classroom as one of the most significant advancements in education. The advent of digital textbooks and online learning platforms, and computer applications has revolutionized the way we teach and learn.

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Teachers may also be assisted by computer applications to create a more engaging and interactive learning environment in the classroom. A variety of software programs can be used by teachers to create interactive learning activities, virtual labs, and instructional videos. 


Consumers are increasingly consuming content through computer applications as the entertainment industry digitizes. Computer applications are making access to entertainment easier than ever before, ranging from movies and music to video games and streaming services.

There are a variety of devices that support these applications, including smartphones, tablets, and laptops. Video game platforms like Steam and Xbox as well as streaming services like Netflix, Hulu, and Disney+ are popular entertainment applications.

Accessing entertainment is easier than ever thanks to computer applications. Users can watch movies and television shows on demand through streaming services, and they can listen to music wherever they are through music streaming services. 

Video gaming platform

A video game platform is another popular form of entertainment provided by computers. Players can purchase, download, and connect with other players through video game platforms such as Steam, Xbox, and PlayStation Network.


A computer application for the industry is one that utilizes a computer to improve productivity, efficiency, and decision-making in various industrial settings. Among the many industries that can utilize computers are manufacturing, energy, transportation, agriculture, healthcare, finance, retail, and government.


Science and research: 

Computers are used extensively in scientific and research applications, such as data analysis, modeling, and simulation. They can also be used for visualization, communication, and collaboration.


1. How are computers used in healthcare?

Computers are used extensively in healthcare for a wide range of applications, including

  • Electronic health records: Healthcare providers can access patient medical records from any location with the aid of computers, which helps to improve the accuracy and efficiency of patient care.
  • Medical imaging: Computers are used to process and analyze medical images, such as X-rays and MRIs, which can aid in diagnosing and monitoring medical conditions.
  • Clinical decision support: Clinical decision support is provided by computers, which assist healthcare providers in making informed treatment decisions.
  • Telemedicine: By using video conferencing and other digital tools, healthcare providers can diagnose and treat patients remotely using computers.
  • Research and development: It is also common for computers to be used in healthcare research and development, in order to analyze data and develop new treatments and therapies.
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2. How are computers used in the military?

Computers are used extensively in the military for a wide range of applications, including

  • Command and control: In military operations, computers provide real-time information and communication, as well as facilitate troop and resource coordination.
  • Intelligence gathering: Intelligence data, such as satellite imagery and communications intercepts, is processed and analyzed by computers in order to inform military strategy and operations.
  • Simulation and training: It is possible to prepare troops by simulating military scenarios and environments using computers


Computers are electronic devices designed to process data and store it according to instructions referred to as programs. The applications of computers are numerous and varied, and they play a vital role in many aspects of modern life. 

Computers are capable of performing a wide range of tasks, from simple calculations to complex operations. Communication, organization, analysis, and automation are all facilitated by them in numerous industries, including businesses, education, science, medicine, entertainment, and many others.

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