*Googles Voyager 190 again*
Definitely a wired router, and on the Silver package you should have a wireless one - complain!
As for set up, most newish desktops and laptops come with an ethernet port as described by londonpaul. If you are connecting a desktop and want to do it wirelessly, you will almost certainly need to fit it with a wireless card, as it is not common for them to come wireless enabled. It will still be easier to set up using an ethernet port and a wire initially, though. If you are connecting a more modern laptop, it will probably already have a wireless card. Again, set up is easier with a wire, and then once the network is set up you can go wireless.