![]() ![]() ![]() Throughout most of the history of personal computers, data has been transferred through serial ports to devices such as modems, terminals, various peripherals, and directly between computers. ![]() This is in contrast to a parallel port, which communicates multiple bits simultaneously in parallel. In computing, a serial port is a serial communication interface through which information transfers in or out sequentially one bit at a time. A male D-subminiature connector used for a serial port on an IBM PC compatible computer along with the serial port symbol ![]()
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