Communication Systems

Examples of Communication Systems

System	Transmitter	Receiver	Signal
U.S. Mail	Letter writer	Addressee	Written letter
Radio	Radio station	Radio	Radio waves
Wi-fi	Controller or game	Television	Microwaves
Computer or printer	Computer	Printer	Electrical pulses
Conversation	Vocal cords & mouth	Ears	Sound waves
Sign language	Hands	Eyes	Sign language symbols