However, modern standards of compatibility between serial equipment and its controlling software have been formed for quite some time around the concept of COM ports which are now seen as archaic. A COM port has been replaced by USB - a more modern method which does not require special knowledge for implementation. ![]() ![]() Today serial port communications are not that common as they once were. However, a serial mouse as well as other peripheral devices can also interact with a computer via a serial interface. If the parallel port was mainly used to connect printers, the COM port (by the way, COM is short for communication) usually worked with telecommunication devices such as modems. However, its scope of application was somewhat different from that of the parallel port. On first machines, the COM port was used for connecting peripheral devices. The serial port appeared long before personal computers of the IBM architecture were introduced. ![]()
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