Which of the following pairs of acronym and its expansion is NOT correctly matched?

AMIDI - Musical Instrument Digital Interchange ✓ Correct

BLED - Light Emitting Diode

CMPEG - Motion Pictures Experts Group

DPDF - Portable Document Format

Correct answer: (A) MIDI - Musical Instrument Digital Interchange

Explanation

MIDI actually stands for Musical Instrument Digital Interface, making the expansion Musical Instrument Digital Interchange incorrect.

LED correctly expands to Light Emitting Diode, a semiconductor light source.

MPEG refers to the experts group that defines audio and video compression standards.

PDF correctly expands to Portable Document Format, a fixed-layout document type.

MIDI is a protocol that lets electronic instruments and computers exchange musical data.

MIDI carries note and timing information rather than actual recorded audio.

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