How to connect to internet

Question

I am almost completelly computer-illiterate (just enough to think I know what I'm doing) but I really thought this computer was ready-to-go like the company said. I don't even understand how to make an internet connection with it! All I have where I live is dial-up;but I don't even see a phone connection on the back of this thing. So how would one go about it? I am really embarassed to even admit to this...