Physics P1 - Digital and Analogue Signals

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Digital Signals

  • Digital signals are better quality.
  • Digital signals don't vary, they have only got 2 values, on or off which makes them easier to process and read.
  • They aren't as noisy as analogue signals- (sound is picked up from electrical interferences).
  • You can send out more than one signal at once using only 1 cable.
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Analogue Signals

  • They vary continuously
  • They aren't as good quality ad digital signals, there are more electrical interferences.
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