A modem modulates outgoing signals from a computer or other digital device to signals for a conventional copper telephone line and demodulates the incoming analog signal and converts it to a digital signal for the digital device.
I have a small problem. I have bought my wife a new Dell Lap top PC and I do not know what the Ambit Cable Modem Model # Uioc018 passphrase or Secutity Key is. I have typed in the defalt “USER” but it still does not except it. I am also running my main unit from it by way of a cable and also my wifes older E Machine Lap top is wireless. Where do I go from hear?