Computer

A computer is an electronic machine, which needs raw data to proceed user requirements. The father of computer was a Charles Babbage. Computer performs three activities: Input, Process  and Output. User ,gives raw data to the computer and central Processing unit (C.P.U ) proceed the given data into meaningful information and provide the result to the user as output.
CPU is the main brain of the computer and all processing function is done in the CPU parts. Mathematical and logical function are also perform in the CPU. CPU is also known as the Microprocessor.

Nowdays, computer are made in different sizes i.e Desktop Computer, Laptop Computer , Palmtop Computer.
Desktop computer is a medium _sized computer. It is made in such a way that it can fit on a table . Ti has many parts attached to it, so it cannot be carried around easily.

Computer consists different parts i.e System Unit, monitor, Input device, Output device, CPU, cable etc.
Input device  are the hardware components that enable users to interact  with a computer. Without input device you would not be able to feed instruction to a computer. Most common input device are the mouse, Scanner, Keyboard. Webcamera, Microphone, Joystick etc.
Outputdevice are those device that sends result to the user. Example of output devices are:Monotor, Speaker etc.
Advantages of computer are:
-It makes our life more easier and comfortable.
-It makes our work fast.
-We can touch with frends and relatives who are staying at far distance.
-We can chat with frends and relatives.
-Playing games. watching movies, listening music