What is computer ?

What is computer ?

Computer is an electronic machine,which can calculate all mathematical and logical operations.

Computer can store huge amount of data computer works very fast. Computer has another name called PC (personal computer).

Working process of computer :
Input -> process-> output

Input device:
We enter some data with the help of which device it is called input device.
Example : keyboard, mouse,joystick ,lightpen..

Process :
We enter some data with the help of keyboard. Computer understand the instructions and then computer will be process on it.

Output device :
After entering data computer will be process on it. After processing we get results with the help of which device it is called Output device.
Example :  monitor , speaker, printer...