Hi Craig1259;
I also am somewhat confused by your question. I know what the folders, Users and Documents, are. The other two, Devices and Places, I don't and can't find on either of my Mac.
If you can give us additional information on Devices and Places, such as a full path maybe we can help there.
Users is a folder where OS X keeps all of the files for all of the users on your Mac. In my case there is a folder in Users called allan, which also has the little house icon to indicate home. Inside of allan is a folder called Documents where all of my documents are kept.
I would strongly recommend against moving anything around in any of the system folders including Applications. Many of the files in the system folder are expected to be located in certain locations and if moved can cause the system to get very upset.
Allan