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? ​

Ruslan0320    2   27.11.2019 12:59    14