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Input output and processing device's

Input devices -
1) Mouse
2) Keyboard
3) Game controller
4) Scanner
5) Microphone

Input device means a device that provide data to computer for processing.
* Keyboard sends command to  computer
* Scanner scans the document or image and sends it to the computer.

Output devices -
1) Monitor
2) Printer
3) CD/DVD
4) Projector
5) Speaker

Output devices displays the information to the user or they collect
the information from the processing device.

* Monitor displays the information on the screen.
*Printer prints the information on paper.

Input/Output devices (I/O)
Input/Output devices works as both input and output devices.

Input/output devices-
1) USB flash
2) Hard disk

* USBflash stores information and also sends information to the computer. So *USB flash work as both input and output device.

Processing devices -
Processing device means a device which process the data
       Or
The devices which convert raw data into a useful information.

Processing devices -
1) CPU (Central processing unit)
2) GPU (graphics processing unit)
3) Motherboard
4) Memory (RAM)
5) Sound card

So basically processing device mean a device that process data.
* CPU process data
*GPU does graphics processing.
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