Which components of a FDIO are used to compose and edit outgoing messages?

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Multiple Choice

Which components of a FDIO are used to compose and edit outgoing messages?

Explanation:
The key idea is that creating and refining what you’ll send happens by seeing the text and entering it. The display shows the message as you type, letting you review fields, callsigns, routing, and formatting in real time. The keyboard is what you use to input characters, move through the message, and make edits. The modem handles sending the finished message, not its creation, and the printer just provides a hard copy. The RCU cabinet assembly isn’t used for composing messages. So the combination of the display and the keyboard best supports composing and editing outgoing messages.

The key idea is that creating and refining what you’ll send happens by seeing the text and entering it. The display shows the message as you type, letting you review fields, callsigns, routing, and formatting in real time. The keyboard is what you use to input characters, move through the message, and make edits. The modem handles sending the finished message, not its creation, and the printer just provides a hard copy. The RCU cabinet assembly isn’t used for composing messages. So the combination of the display and the keyboard best supports composing and editing outgoing messages.

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