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A computer image is displayed on a white wall. Which output device is being used for this?
1. LCD display
2. Monitor
3. Data projector
4. Flat panel

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Correct Answer - Option 3 : Data projector

The correct answer is data projector.

  • A data projector is used to display computer images on a white wall. 

  • Data projector:
    • A data projector or image projector is an optical device that projects an image or film onto a surface or a screen.

  • An LCD display is a flat-panel display or another electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with a polariser.

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