The specific steps for setting up a computer serial port are as follows:

The materials we need to prepare are: computers,

1. First, we right-click to open Properties in My Computer.

2. Then, we click "Port" in the pop-up window to open the device manager.

3. Then in the pop-up window, right-click to open the properties of the port you want to set, and then open the port settings, which can be set according to your own requirements, and then press enter to confirm.