1Why does a television connected to an antenna have the poorest sound and picture quality?
2Why must digital signals be converted back into analogue signals in a broadcast?
3What is a digital signal? Explain it using a circuit with a bulb and a switch.
4Write four differences between an analogue signal and a digital signal.
5How many combinations can be made with three binary digits? Write them all.
6Convert 2 MB into bytes.
7Define bit, nibble and byte.
8What is the job of a transistor in an electronic device?
9Who is a digital native or digital citizen, and how should one behave online?