Three descriptions of data transmission are given below.
Tick (✓) the appropriate box in each table to show the:
• type of transmission
• method of transmission
Description 1:
Data is transmitted several bits at
a time down several wires in both
directions simultaneously.
Description 2:
Data is transmitted in one direction
only, one bit at a time, down a
single wire.
Description 3:
Data is transmitted one bit at a
time down a single wire; the data
is transmitted in both directions
but not at the same time.