Re: Pone as airport card
Yes that's definitely possible.
1. Connect your phone to your house wifi
2. Connect your phone via a USB cable to the Desktop
3. Turn on 'USB Tethering' on your phone
Voila, your Desktop will be connected to your house wifi!
If you need more specific instructions, please post what phone model you have and what Operating System your Desktop is running (e.g. Windows 7? Windows 10, Or is it a Mac?)
"As a result of all this hardship, dirt, thirst, and wombats, you would expect Australians to be a sour lot. Instead, they are genial, jolly, cheerful, and always willing to share a kind word with a stranger, unless they are an American." -- Douglas Adams