An FDIO system consists of a printer, keyboard, and ________.

• A. Handset
• B. CD ROM Drive
• C. Display
• D. Speakers

Answer: (C)

The main concept here is how the FDIO system provides the human–machine interface for data handling at the control desk. The keyboard handles input, allowing you to type flight data or commands. The printer creates a hard copy record of information and messages for logs or strips. The remaining piece that completes the setup is the display, which shows all the information visually—aircraft data, statuses, alerts—so you can read and react in real time.

Handset would be for voice communications, which isn’t part of the FDIO’s data input/output set. A CD ROM drive is just storage and not a standard component of the FDIO interface. Speakers might provide audio alerts, but the essential visual output required for ongoing operations is the display.