A data transfer operation communicates signals or data bits between two machines. The process requires a sender and a receiver of the data. Serial and parallel data transfer have unique advantages and disadvantages. Learn how these types of data transmission are handled.
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Serial communication transfers one data bit at a time, while parallel communication transfers many data bits at a time. Serial communication transmits data bits sequentially, while parallel communication transmits data bits simultaneously allowing larger amounts of data to be transferred.
Serial communication requires less wires and cables and is ideal for transferring data over long distances. Parallel data transmission uses more wires causing transmitted signals to become distorted and the data unreliable when communicating over long distances.
Serial ports require less pins than parallel ports, so the hardware for machines using serial ports is smaller. Parallel transmission requires more wires which results in serial transmission being less costly.
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