Serial Vs Parallel. As against in parallel communication multiple parallel links are used that transmits each bit of data simultaneously. In serial processing same tasks are completed at the same time but in parallel processing completion time may vary.
As against in parallel communication multiple parallel links are used that transmits each bit of data simultaneously. The example of parallel communications are computer to printer and communication between internal components in embedded systems the parallel communication provides quick and high speed transmission but at high cost and requires more wires. A serial port can also be referred to as a communication port or bi directional port.
The example of serial communications are usb sata i2c spi etc.
In a digital communications system there are 2 methods for data transfer. Thus a parallel port transmits data much faster than a serial port. In parallel transmission many bits are flow together simultaneously from one computer to another computer. One key difference between a serial and parallel port is that the serial port allows for data to be transferred to the hard drive from a remote device or transferred from the hard drive to a remote device as opposed to the parallel port s outbound only communication.