Processor

CENTRAL PROCESSING UNIT (CPU)
                                                                                                                                                                   The main unit inside the computer is the CPU. This unit is responsible for all events inside the computer. It controls all internal and external devices, performs arithmetic and logic operations. The CPU (Central Processing Unit) is the device that interprets and executes instructions.

Major parts of the Computer

Input Devices
Serial No.                                         Devices Name.                                Devices picture.

01	Mouse
02	Keyboard
03	Scanner
04	Digital Camera
05	Web Camera
06	Joysticks
07	Track Ball
08	Touch Pad/ Screen
09	Light Pen
10	Bar Code Reader
11	Microphone
12	Graphics Tablets
13	Magnetic Ink Character Reader (Used in Bank)
14	Optical Mark Reader (Used for Answer- Sheet Marking Purpose)
15	Magnetic Card Reader (Used in Shops, Colleges, Stations etc)
16	Biometric Devices
17	Bluetooth