Welcome to APUG!
My suggestion is for you to go to a local library and look up photography. While you can get most of what's needed on web, if you are entirely new to it, more coherent approach may be easier and better for you. If you find a book from 80s or earlier and there are plenty of them, many of them will do great job explaining (with pictures) how to proceed. Basically, you are asking, tell me everything! It can get quite confusing when lots of people chime in and try to tell you how they do their stuff in bits and pieces.