A computer is an ultra modern electronic device designed for storing and analysing information fed into it, serving as a vital tool in modern life. It has no capacity to do anything by itself and works strictly on the basis of commands given by the operator.
What is a Computer and How Does It Work?
The invention of the computer has a long history. A computer was not invented overnight; it took a long time and hard labour to invent computer systems. Every computer has a machine language of its own and accordingly it works. However, machine language is not fixed; it varies from machine to machine.
What Are the Major Components of a Computer?
Understanding the internal structure of this electronic device helps clarify how it processes data efficiently. A computer consists of five major components:
- The input unit
- The output unit
- The memory unit
- The control unit
- The arithmatic unit
What Are the Core Functions of a Computer?
To deliver accurate results, a computer performs three primary functions sequentially:
- Firstly, it receives data.
- Secondly, it processes data by various computations.
- Thirdly, it emits data.
Why Are Computers of Great Use to Us?
The computer is of great use to us and renders great service to mankind. Often compared to Aladdin's lamp, it has lessened our work loads, saved time and energy, and made our life easy and comfortable. Because of these benefits, we cannot go a single moment without computers, making them a part and parcel of our daily life.
Key Takeaways
- Computers are ultra-modern electronic devices for storing and analysing information.
- They operate solely on commands given by the operator and have five main components.
- Computers perform three functions: receiving, processing, and emitting data.
- They save time and energy, making daily life easier and more comfortable.
Quick Practice
Test your understanding of this topic by answering the questions below in the comments section:
- How many major components does a computer consist of according to the text?
- What are the three core functions that a computer performs?
Frequently Asked Questions
What is a computer?
A computer is an ultra modern electronic device used for storing and analysing information fed into it.
Can a computer work by itself?
No, a computer has no capacity to do anything by itself and works strictly on the basis of commands given by the operator.
What are the three functions performed by a computer?
A computer receives data, processes data through various computations, and emits data.