Hi dconant1, If your son's machine is a desktop computer then these are not fitted, at the factory, with a wireless network adapter
(unlike a laptop, where one is normally installed at the factory.)
The main exception to this is the "all in one" desktop computer (where the computer is present in the inch or two space behind and integral with the VDU…there being no separate tower, or computer box.
Whats to be done therefore?
There are 4 main choices that are worth considering:
1 Connect an Ethernet cable twixt the router and the computer…… this is a simple quick and efficient method of connecting, it preserves Internet speed but does mean that you will have to route the cable from the basement to the computer…..or perhaps better…site the computer next to the router if you have to route the cable twixt basement and may be the ground or ist or 2nd floor then this will be easy or difficult depending on your DIY skills…..
2 Use a Home network plug that utilises the homes electric wiring circuits to convey the Internet to any electrical outlet socket within the home, they are available from about GBP £28 for two…here's a link to give you the idea:
http://www.amazon.co.uk/Value-200Mbps-Home…e/dp/B001AIKBB4
3 Buy a USB wireless network adapter, install the software from the cd and then plug it in to a USB socket…….. here's an example of one you can usually get for around GBP £8 to £12
http://www.amazon.co.uk/Netgear-WG111-Wire…r/dp/B0002LHX8O
this will enable your desktop to connect to the router wirelessly in a similar fashion to your laptop computers.
4 Buy a PCI wireless network adapter and install it, this is similar to 3 above but involves installing the PCI board to the inside of your computer, (rather than just plugging into a USB socket) so before taking this step you should be familiar with the personal safety and ESD (anti static) precautions necessary when opening your computer's casing.
here's an example:
http://www.amazon.co.uk/b?ie=UTF8&node=430541031
If you want to have a wireless connection for your desktop computer and want a quick easy and cheap solution then number 3 above is well worth considering….. for a better signal plug the wireless network adapter into a USB extender cable (a pound or so or a dollar or three) rather than directly into the back of the computer where the signal may be shielded somewhat by the metal in the tower.
Regards
paws