(a(i)1)
Explain what the term analogue signal means.
(a(i)2)[3]
Explain what the term digital signal means.
(a(ii))[2]
State two benefits of the transmission of data in digital form.
(b(i))[2]
Describe the role of the ADC (analogue-to-digital converter).
(b(ii))[1]
Suggest why the transmission cable has a number of channels.