WAEC - Computer Studies (2020 - No. 44)
Digital signals can be represented by:
I. Binary Codes
Il.0 and 1
III. High and Low Which of the following options is correct?
l and Il only
I and lIl only
II and lIl only
I, Il and III
Explication
Digital signals can be represented by binary codes (I), the digits 0 and 1 (II), and high and low states (III).