Answer :

1.mouse input
2.keyboard input
3.monitor output
4.speakers output
5.printer output , and input if has scanner
5.microphone input
An input device is an equipment or hardware device which is used to send information to a PC. An input device enables clients to impart and feed directions and information to PCs for processing, display, storage and as well as transmission.
Examples of input devices are;
Keyboard
mouse
microphone


An output device is any device used to send information from a PC to another device or client. Most PC information output that is intended for people is as sound or video.
Examples of input devices are;
Projectors
Speakers
Earphones
printers