T/E.3. Communication Technologies
T/E.3.1. Identify and explain the components of a communication system, i.e., source, encoder, transmitter, receiver, decoder, storage, retrieval, and destination.
T/E.3.3. Identify and compare communication technologies and systems, i.e., audio, visual, printed, and mass communication.
T/E.3.4. Identify and explain how symbols and icons (e.g., international symbols and graphics) are used to communicate a message.