Which Is an Example of an Input Device

question 55

Multiple Choice

Which is an example of an input device?

• A)A barcode reader
• B)A cathode ray tube
• C)An inkjet printer
• D)An organic light-emitting diode

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Definitions:

Monaural Cues

Sound localization cues that can be picked up by one ear, helping to identify the direction and distance of sounds in the environment.

Pitch

The quality of a sound governed by the rate of vibrations producing it; perceived as a degree of highness or lowness of a tone.

Amplitude

The height or intensity of a wave signal, which in terms of sound, determines its loudness, and in light, influences its brightness.

Decibels

A unit of measurement that indicates the intensity of sound on a logarithmic scale, representing the ratio of a particular sound pressure to a reference level.