Welcome to the new platform of Programmers Heaven! We apologize for the inconvenience caused, if you visited us from a broken link of the previous version. The main reason to move to a new platform is to provide more effective and collaborative experience to you all. Please feel free to experience the new platform and use it's exciting features. Contact us for any issue that you need to get clarified. We are more than happy to help you.
I am trieing to use the inp function to get readings from ports. The only problem is that i do not know what the port numbers are assigned to and when I have tried quickbasic shuts down and says something like "Windows cannot open COM4". What does that mean? How can i find the port numbers?