Computer Science · Visual Display Unit
How does a traditional CRT-based Visual Display Unit (VDU) represent any character on the screen?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1By mechanically embossing the screen matrix
- 2By illuminating a specific pattern of dots✓
- 3By burning a continuous chemical layer
- 4By reflecting external ambient light
Correct answer
By illuminating a specific pattern of dots
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