Serial And Parallel Communication Difference Between

disadvantages.

Serial Communication	Parallel Communication
1. Serial communication transfers one data bit at a time	1.Parallel communication transfers many data bits at a time
2. Serial communication transmits data bits sequentially	2. Parallel communication transmits data bits simultaneously allowing larger amounts of data to be transferred.
3. Serial communication requires less wires and cables	3. Parallel data transmission uses more wires causing transmitted signals to become distorted and the data unreliable when communicating over long distances.
4. It  is commonly used for transferring data over long distances.	It  is commonly used for transferring data over short distances.
5. Serial ports require fewer pins than parallel ports, so the hardware for machines using serial ports is smaller.	5. Serial ports require fewer pins than parallel ports, so the hardware for machines using serial ports is smaller.