A CMS or Content Management System is a bundled or stand-alone application used to create, manage, store, and render content on Web pages. Web content includes text and embedded graphics, photos, video, audio, and custom code that renders other content or interacts with the user.
A web CMS may also catalog or index content, select or assemble content at runtime, or deliver content to specific visitors in a personalized way, such as in different devices and screen displays.
A content management system (CMS) is a computer system that allows publishing, editing, and modifying content as well as site maintenance from a central page. It provides a collection of procedures used to manage workflow in a collaborative environment.