You have to first have an ISP for your internet, they will supply you with a modem, if its dsl, the modem has to plug into a specified phone line, if cable, it plugs into your cable outlet. The modem will than plug into your router, wireless or wired. If you have a wireless router, you wont need to connect any wires to your computers, and all you will need is a seperate wireless card for each computer.