ANALOGUE AND DIGITAL SIGNALS (Physics unit 1) Flashcards
PHYSICS (8 cards)
1
Q
ANALOUGE SIGNALS
A
vary in frequency or amplitude
2
Q
DIGITAL SIGNALS
A
series of pulses consisting of just binary code ON (1) or OFF (0)
3
Q
ANALOGUE SIGNALS features
A
- have any value
- can not be stored onto a computer
- lower quality
4
Q
DIGITAL SIGNAL FEATURES
A
- have only two values
- can carry large amounts of info
- higher quality
5
Q
ANALOGUE SIGNALS strengths
A
- uses less bandwidth than digital
- easier to process
6
Q
ANALOGUE SIGNALS weaknesses
A
- quality easily lost
- random white noises and distortion in sound
7
Q
DIGITAL SIGNALS stengths
A
- better quality
- convey information with less noise distortion
8
Q
DIGITAL SIGNALS weaknesses
A
- higher bandwidth needed
- Processor speed is limited
