Computer Science for IGCSE & O level - Data Transmission (Section 11 - No. 45)
What distinguishes half-duplex from full-duplex data transmission?
Half-duplex uses parallel; full-duplex uses serial.
Half-duplex transmits data in one direction at a time; full-duplex transmits in both directions simultaneously.
Half-duplex is for short distances; full-duplex is for long distances.
They are the same.
解释
Half-duplex transmits data one way at a time, whereas full-duplex can transmit in both directions concurrently.