Mouse

Monitor
E.G:
Liquid Crystal Displays (LCD)
Thin Film Transistors (TFT)
Cathode Ray Tube (CRT)

Printer
E.G:
Laser Printer
Ink-Jet Printer
Dot Matrix Printer

Barcode Reader

Speakers

Touch Screen

Scanner

Plotters

Projectors

Microphone

Lights

Joystick

Graphics Tablet

Mechanical Devices

Magnetic Stripe Reader

Digital Camera

Motors

TrackBall

Chip and PIN Reader

Remote Control