CMS is a software method used to handle content, including web content, images, audio files and so on. It is what website users observe on their browsers and what they really do from there for instance write blogs or purchase something. But any organization of a website is complete in back end.
A Content Management System (CMS) is a computer program that allows publishing, editing and modifying content as well as maintenance from a central interface. Such systems of content management provide procedures to manage workflow in a collaborative environment.