2. Multiple Users
If you want several computers to have simultaneous access to your broadband connection, you will need a router. A router is a small box which plugs into your broadband connection. Other computers (usually up to 4 or 8) then plug into the router, either directly via a USB or ethernet cable, or via a wireless connection (see next section). Some broadband service providers offer a router as a standard installation option if you pay an extra cost. Alternatively, you can buy your own router and plug it into an existing broadband connection (subject to the terms and conditions of your agreement). Note that a router connecting to an ADSL service needs to include its own ADSL modem interface. Some routers also include a firewall to provide extra security protection.