Modulation, demodulation and the modem
Computer Studies · Grade 10 · about 40 minutes
Impress digital data onto a carrier the line was built for, recover it at the far end, and see why the box is called a modem.
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- 8 sections of explanation, worked examples and diagrams
- 1 practice task with hints and worked answers
- A quiz that marks itself as you go
- Your progress kept across every subject you take
Other lessons in this sub-strand
- How data is transmitted, and guided media
- Wireless media, choosing a medium, and connecting devices
- Encoding and decoding a signal
- Modulation, demodulation and the modem
- Multiplexing: sharing one expensive medium
- Twisted pair and coaxial in practice
- Fibre optic: light in glass
- Factors, choice and connecting devices in Kenya