Yep. What @Bigdaddy2166 said. The one I am linking is just an example of what can be used as I’ve been using that for 3 years. His is a better deal and better spec’s.
But… what concerns me is your statement “it appears the pro doesn’t come with a computer”.
It absolutely doesn’t come with a computer, so just to help you plan, how much research have you into what the table will and won’t do and what the workflow is?
I would also skip buying a new computer if you already have an old laptop you can try things out with first. Run it off the laptop before you by anything else. Touchscreens are preference, but I run mine with a wireless keyboard and have the PC plugged into an old tv.