Hi I have read some of the other messages and i am moving into a motorhome and i need to set up a computer and i know nothing of what to do. I will not be able to have a phone cord and need to know what i need to get this up and running. Please help me if you can.
You didnt say if the motorhome was actually going mobile or staying put.
Anyways you will need either fios, cable, satellite or a wireless internet carrier such as clearwire, cricket, verizon, at&t, etc... And an interface device like a router or a wilreless usb stick - which is often supplied.
If staying put I would check with some of the closeby neighbors and see if they have wireless internet they would share with you. Then all you would need is to add a wireless nic to your pc as long as it has a dencent antenna and was near a window.
If travelling I would look into cellular internet from one of the major carriers like Verizon or AT&T.
While mobile satellite is nationwide and high speed and no dead spots (if you can see the sky you should connect) its also expensive as heck.
Keep in mind that no matter which route you take you may need to wire in an external antenna. Mobile homes often have a metal skin which blocks signals.