What is an ADSL router?
Your router is the device which connects your computers to the ADSL service. It connects to your ethernet network on the inside, and to the DSL phone line on the outside. If you have only one computer you MAY have instead of a router a device called a USB Modem. The way to tell them apart, if you have a router, it will be connected to your computer’s NETWORK port. If you have a modem, it will be connected to a USB port. A router can connect multiple computers, and usually has at least four network ports on the back. A modem can connect only a single computer. Even if you only have one computer you may still have a router, however, as they are easier to use and make your network more secure from viruses and worms.