ITPEC IP April 2024 Question 11
Which of the following is an appropriate explanation of HDMI?
Explanation
Video, audio and control signals through a single cable — HDMI is the digital interface of AV equipment such as TVs, displays and recorders.
HDMI (High-Definition Multimedia Interface) carries digital video and multichannel digital audio on one cable, together with control signals that let connected devices operate each other, for example a TV remote also controlling a recorder. It links PCs, game consoles and players to TVs, monitors and projectors.
Answer (a)
Why not others:
- •(b) — infrared communication between mobile phones describes IrDA
- •(c) — a serial cable interface for external hard disks and other devices describes USB (or eSATA), not an AV interface
- •(d) — a wireless interface using radio waves that works through slight obstacles describes Bluetooth
Key rule: Match each interface to its medium: HDMI for audio and video over one cable, USB for general serial devices, IrDA for infrared, Bluetooth for short-range radio.
Computer Component · AI-written, may contain errors
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