Answers:
Yes, as long as you own a wifi card and a wife, wireless, internet router next to an internet provider that provides this.
Yes, you can bring any a USB dongle or a PCI adapter.
A desktop? Yes... near an join on!
By household computer do you close-fisted laptop? Because if you parsimonious a desktop, probably you should buy a wireless router and connect that to your modem.
yes
Yea, it can.
You can buy a USB adapter or a PCI Card for Wi-Fi
I assume you show a Desktop btw.
Yeah my parents are getting me an adapter for Christmas
yes
Yes.