Question

name any four input and output devices

Answer 1

Input device - mouse, keyboard, light pen, touch screen, CD drive, 
output device - monitor, printer, plotter, sound 

Answer 2

Hi there,

Here's your Answer you are looking for:"

Input Devices:

1.Keyboardy
2.Mouse
3.Pendrive
4:Barcode Reader etc.

Output Devices:

1.Printer
2.Monitor
3.Speaker
4.Headphones/Earphones etc.

HOPE THIS HELPS :))