 <p>You need to know both, The RoR framework is an organizational and convenience system if you will, what it organizes is your ruby code.</p> <p>If you have programmed before then here are most of your answers:<br> <a href="http://www.ruby-doc.org/core/" rel="nofollow noreferrer">http://www.ruby-doc.org/core/</a><br> <a href="http://railsapi.com" rel="nofollow noreferrer">http://railsapi.com</a></p>