Look in the user manual of your security camera what the requirements for the PC it connects to are and how to connect. Then - if necessary - buy additional hardware and/or software, connect and test.
I am sure I once read advice on this subject here. I have an old PC which is not required and I want to use it for security equipment.
I wonder if anybody can help. To link this PC with the security camera to see whatever is happening outside without getting out.
Helpful suggestions will be appreciated.