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Analog and Digital Signals
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Grade 8
8.72 Analog and Digital Signals
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Which statement best supports that the digital image can be more reliable for long-term storage in a noisy environment?
A
Even if rare bit flips occur, the digital system can detect/correct them and the image can be recopied perfectly, while the analog film’s fading continuously changes the stored information.
B
Film is more reliable because it does not use electricity.
C
Digital is less reliable because it uses numbers.
D
Bit flips prove digital storage is always unreadable.
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