Arun Bhatta

The concept of input, output, processing and storage used by Charles Babbage in his analytical engine became the basis for the evaluation of using bits in his machine. Since the dream of modern computers has come true only due to Babbage's innovative idea, he is considered as the father of computer.

Charles Babbage is regarded as the father of computer as a result of his contributions to the basic design of the computer. He invented Difference Engine in 1822 and Analytical Engine in 1833.

The circuitries of computers are designed on the basis of electrical signals and data travel them as the speed of current, therefore the computer is able to perform any task at the high speed. 

Computer is called diligence machine because it can perform the task repeatedly without loosing its speed and accuracy for long time. 

The capabilities of computer are listed below :

• Computers operate at a very high speed, in fact with the speed of light.
• Computers operate nearly 100% accurately.
• Computers is capable of functioning automatically.
• Computer is a  versatile device.
• Computer stores large volume of data and information. 

Data is defined as the raw facts or symbols which are collected from various sources and need to be processed. 

Information is defined as the desired or meaning full result obtained after processing the data.

Computer is an electronic data processing device capable of taking an input data, processing them and displaying the processed result at a very high speed under the control of set of instructions. The four features of computer are :

• Speed
• Accuracy 
• Versatility 
•  Diligence