Computer Science for IGCSE & O level - Data Transmission (Section 8 - No. 11)

What is the primary advantage of serial data transmission over parallel data transmission, particularly for long-distance communication?

Higher data transfer rates.

Lower cost due to simpler wiring.

Ability to transmit data in both directions simultaneously.

More resistant to electrical interference.

Serial transmission generally uses fewer wires, thus making it a more cost-effective solution for longer distances.