Wifi Can't find my PCI wifi device

[RGuzzo]

Just installed Kubuntu on this old machine I had at home. I remember the computer originally did not have a wifi interface, I purchased one a few years later. Now with Kubuntu I can't seem to find the interface anywhere. Running all the commands I found on many different forum posts, I can only see my ethernet controller and my usb thetering interface through which I post this.
Here is the link to a script I found on an older post: http://paste.ubuntu.com/p/bBwf7cH4Wf/
Hope you can help me,
Regards from Brazil

[claydoh]

What brand and model is it? Even if it didn't have a driver installed, the system should show the PCI device using the lspci command. Has it maybe come loose?
Your script output does not show the full output of the lspci command, so copying the output of the command here into a post would be useful.