A touchpad is a stationary pointing device with a ball on its top or side.

Voice input is the process of entering input by speaking into a microphone.

A webcam can only capture still images.

A flatbed scanner works exactly like a copy machine.

Impact printers form characters by striking a mechanism against an inked ribbon that physically contacts the paper.

A 3-D printer uses additive manufacturing, adding material to create a three-dimensional object one horizontal layer at a time.

RFID can only be used for tracking runners in a marathon.

An all-in-one printer can print, scan, copy, and sometimes fax.

Audio input can only include speech.