How do I hook up two computers to cable internet?

[jemswillam]

We have one computer (downstairs) hooked up to a cable modem through charter communications and we just got another computer (upstairs) that is currently hooked to aol dial up. We would like to have the second computer on cable broadband also so I just called the cable company and the tech said oh we don't deal with that what you need to do is get a router or a splitter hold on while I check he comes back and says yes it's a splitter you need. I explained that I don't want wires throughout the house but this is what he said I need to do. This does not sound right to me I don't know if it is called networking or not but what I thought they would do is give us a wireless box for the upstairs. I don't care about sharing info with the downstairs computer I strictly want the broadband access on the second computer. I don't want to have to pay another $45 a month for them to hook a cable modem up here. Can someone please tell me what to do?