Question

3 Read the text again and answer the questions.
1 What type of broadcasting uses radio waves?
2 What problems were there with this system?
3 What is binary code?
4 How can TVs receive digital information?
Name four routes.
5 Does a decoder have to be inside a TV?
Explain your answer.
6 What's the difference between an HDTV and a standard TV?
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Answer 1

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