220-801 · Question #1176
Which of the following components is responsible for converting light into digital information?
The correct answer is D. Webcam. A webcam contains an image sensor (CCD or CMOS) that captures photons (light) and converts them into digital data. This is its core function. A microphone converts sound waves into digital signals, not light. A digitizer converts analog signals (like touch or pen input) into…
Question
Which of the following components is responsible for converting light into digital information?
Options
- AMicrophone
- BDigitizer
- CInverter
- DWebcam
How the community answered
(30 responses)- B7% (2)
- C3% (1)
- D90% (27)
Explanation
A webcam contains an image sensor (CCD or CMOS) that captures photons (light) and converts them into digital data. This is its core function. A microphone converts sound waves into digital signals, not light. A digitizer converts analog signals (like touch or pen input) into digital form. An inverter converts DC voltage to AC voltage, commonly used in older LCD backlights. Only the webcam's fundamental purpose is converting light into digital information.
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