Real noob here.... javac is not recognized as an internal or external command. ??

I installed JVM and am running jdk1.7.0

I can only get my code to run when I run it out of the bin folder. I want to put my .java files in a folder on my desktop but whenever I take my programs that I wrote out of the bin folder it says "javac is not recognized as an internal or external command"

What am I doing wrong??

Did you add the JDK to that PATH? See the following link for detailed instructions on how to do so:
PATH and CLASSPATH (The Java™ Tutorials > Essential Classes > The Platform Environment)