5 Fundamentals of Computers | What is a computer?

Being a teacher when I asked students “What is a Computer“, they answered “Sir Computer is a machine”, some of them said that “Computer is an electronic device” and blah blah.

In this 21st century where we are doing all our work on computers and day-by-day computer involvement in our daily life is taking a tremendous place I got surprised by listening to these ridiculous answers given by them.

what is computer?

So let’s discuss how can we define computers by answering some simple questions.

1. Have you ever seen your PC/Laptop turn on itself and do some work?

The answer is no. What a ridiculous question is this! How a machine can turn them on/off by itself?

2. What is the power source of your computer?

The answer is electricity. Correct?

3. When you ask a question from the computer let’s say calculate 5*5 then what happens in the computer?

The answer is some sort of processing.

So, let’s summarise this

We can say that:-

A computer is an electronic device/gadget that takes raw data as input from the user and processes the data to produce the result/output.

The term “computer” is derived from the Latin word “computare” which means to calculate.

What is a Computer?

A computer is designed to execute applications and provides a variety of solutions through hardware and software components. It works with the help of programs and has a memory that stores the data, programs, and results of processing. 

 There are some basic parts without which a computer cannot work as follows:

  • Input Device: It allows you to give commands to the computer or to input data, e.g., a keyboard, mouse
  • Output Device: It enables you to see the output, e.g., monitor, printer
  • Motherboard: It is the part that connects all other parts or components of a computer.
  • Processor: It executes the instructions received from software and hardware.
  • Memory: It is the primary memory for data transfer between the CPU and storage.
  • Storage Device: It permanently stores the data, e.g., hard drive.

Fundamentals of Computer

The fundamentals of a computer include the following components:

  1. Central Processing Unit (CPU) – the “brain” of the computer that performs calculations and logical operations.
  2. Memory (RAM) – temporary storage for data used by the CPU.
  3. Storage (hard drive, SSD) – long-term storage for data and programs.
  4. Input/Output devices (keyboard, mouse, monitor) – used for interacting with the computer.
  5. Networking (Ethernet, Wi-Fi) – allows the computer to connect to other devices and the internet.
  6. Operating System (OS) – the software that controls the computer and manages its resources.

Advantages of Computers

Computers have many advantages, including:

  1. Speed and efficiency: Computers can process large amounts of data quickly and accurately, making tasks such as data analysis, calculation, and communication faster and more efficient.
  2. Storage: Computers can store large amounts of data and information, making it easy to access and retrieve.
  3. Connectivity: Computers can connect to the internet, allowing for easy communication and access to a vast amount of information and resources.
  4. Automation: Computers can automate repetitive tasks, freeing time for more complex and creative work.
  5. Accuracy: Computers can perform complex calculations and data analysis with high accuracy.
  6. Accessibility: Computers have made information and resources easily accessible for many people, particularly through the internet, and have increased opportunities for education and learning.
  7. Multitasking: computers can perform multiple tasks simultaneously, making it possible to work on several projects simultaneously.
  8. Globalization: computers connected to the internet help to create a global market and facilitate international communication and business
  9. Entertainment: computers can be used to play games and watch movies, listen to music and more.

Disadvantages of Computers

Computers also have some disadvantages, including:

  1. Dependence: people have become increasingly dependent on computers, and a breakdown or malfunction can cause significant disruption and loss of productivity.
  2. Health problems: prolonged use of computers can lead to health problems such as eye strain, back pain, and carpal tunnel syndrome.
  3. Cybercrime: the internet and computer networks have created new opportunities for cybercriminals to commit fraud, steal personal information, and spread viruses and malware.
  4. Job Loss: automation and computerization can lead to job loss as machines can replace human workers in many tasks.
  5. Social Isolation: overreliance on computers can lead to social isolation and a lack of face-to-face communication.
  6. Cyberbullying: the anonymity of the internet can make it easier for people to bully and harass others online.
  7. Lack of Privacy: computers and internet-enabled devices collect and store a lot of personal information, which can be vulnerable to hackers and other cyber threats.
  8. Environmental Impact: the production and disposal of computers can have a negative impact on the environment as they contain toxic materials and are energy-intensive.
  9. Limited creativity: relying too much on computers can limit creativity and problem-solving abilities.

Uses of computer in our daily life

Uses of computer in our daily life
Uses of computer in our daily life

Computers are used in many aspects of daily life, including communication, entertainment, work, and education. Some common uses include:

  • Communication: Email, instant messaging, and video conferencing are all ways that people use computers to communicate with others.
  • Productivity: Computers are used to create and edit documents, spreadsheets, and presentations. They are also used for project management, scheduling, and task management.
  • Entertainment: People use computers to watch movies, listen to music, play games, and stream videos.
  • Education: Computers are used for online learning, research, and access to educational resources.
  • Shopping: Online shopping has become a common way for people to purchase goods and services.
  • Banking and finance: People use computers to manage their bank accounts, pay bills, and invest money.
  • Research: Computers are used to access and analyze data, conduct research, and gather information.
  • Healthcare: Computers are used to manage patient records, schedule appointments, and access medical information.
  • Transportation: Many people use computers to plan their travel, book flights, reserve rental cars, and more.
  • Government services: Many government services are now available online, such as paying taxes, renewing licenses, and accessing public records.

Additionally, many everyday devices such as smartphones, smart TVs, and smart home devices also rely on computer technology.


What is a computer simple definition?

A computer is an electronic device that can process and store data, perform calculations and operations, and run software programs.

What are the 5 definitions of computers for junior students?

1. A computer is a machine that can do many tasks, like math and typing.
2. A computer is like a robot brain that can think and work for you.
3. A computer is a tool that can help you play games, learn new things, and talk to friends.
4. A computer is a box with a screen and buttons that let you control it.
5. A computer is an electronic device that can store and process information, like a calculator but more powerful.

What are the 4 types of computers?

1. Desktop computers: Personal computers that are designed to be used on a desk or table.
2. Laptop computers: Portable computers that can be easily carried and used in different locations.
3. Tablet computers: Mobile devices with a touchscreen display and a battery, designed for portability.
4. Server computers: Powerful computers that store, process and manage data and resources for other computers in a network.

What can computers do?

Computers can perform various tasks such as processing and storing data, running software programs, and connecting to the internet.

What are the parts of a computer?

The main parts of a computer include the Central Processing Unit (CPU), memory (RAM), storage (HDD or SSD), motherboard, power supply, input devices (keyboard and mouse), output devices (monitor and speakers), and networking components (ethernet or wireless card).

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