com port area COM port (cluster communication port) is the serial communication port. The COM port on the microcomputer is usually 9-pin, and there are also 25-pin interfaces with a maximum speed of 115200bps. It is usually used to connect the mouse (serial port) and communication equipment (such as connecting an external MODEM for data communication or some factory CNC machine interfaces), etc. Generally, there is only one COM port on the outside of the motherboard. The nine-hole output port (trapezoid) on the back of the chassis together with the parallel port is the COM1 port. The COM2 port is generally led out from the pins on the motherboard. The parallel port is the longest trapezoidal port. Click to view PC software COM_Text serial port debugging tool 2017-09-22 Mechatronics | 776KB | v2.0 official version Check Related articles How to transcode qq music to mp3 qq music transcoding method How to enable Thunder P2P acceleration function in Thunder 11 How to enable Thunder P2P acceleration function in Thunder 11 How to connect Xunlei to Xunlei server - How to connect Xunlei to Xunlei server How to get down in Minecraft - How to get down in Minecraft How to return to the place where my world failed last time - How to return to the place where my world failed last time How to turn off and start Thunder in Thunder 11? How to turn off and start Thunder in Thunder 11? Related topics Universal driver encyclopedia nvidia graphics card driver area Universal network card driver software area MSI Small Aircraft Zone Collection of essential driver software for starting school USB disk encryption software area