There are hot spots on the ship, one of course being where the Terminals are, and there is one on the Lido pool area and other spots. I think (not for sure) you open you browser and connect to a particular IP address they give you that takes you into the same server the terminals are using. The charge is the same as it is using their terminals, but you have the freedom of movement. And yeah, it will, in many cases, remind you of the good old dialup days.