Fundamental Concept of Computer

    Fundamental Concept of Computer

Introduction

Today is the world of computers as every field is dependent on it. A computer is a powerful tool developed by the human. Computers have reshaped our lives at home, office, school and other various places. The computer is a basic part of human life. The life of human is almost impossible without it. The computers have not only enhanced the efficiency of the user but also have changed the lifestyle of human. It is a machine that performs calculations and processes information with amazing speed and accuracy. They can help us in solving many complex tasks and improving the quality of our lives. It can help in producing actual result, help in teaching and assist in removing various human errors.

Working principle of computer

A computer is a machine that receives and processes data according to the instructions given to it, and after the data has been processed, the results of the processing are usually sent to an output device. The computer system works on the principle of input-process and output. Computer gets data and instruction from the input devices like keyboard, mouse, scanner, microphone, light pen, etc. Input is the act of entering data and instructions to the computer for processing.

Processing

When a computer gets the input with the help of input devices then it starts to process the data for the user. The CPU is responsible to do these activities in the computer system.

Output

After the data are processed they go to the output devices such as the monitor. The main task of an output unit is to display the result. The output is always meaningful. The output devices can be a screen (monitor), printer, plotter, speakers, etc.