Wireless Router
What equipment do I need?
Wireless router
It's easy to build a wireless network. Begin with a wireless router as the central connection point of your network.
You will also need to make sure your computer is wireless-compatible. Look for the word "Wi-Fi" on your computer or in the documentation supplied with it. You can also ask the manufacturer if your computer is Wi-Fi compatible.
USB Wi-Fi adapter
If your computer isn't compatible, you can still connect it to a wireless network with a USB Wi-Fi adapter like the one shown here.