A Content Management System (CMS) is a software application that enables users to create, manage, and modify content on a website without needing specialized technical knowledge. It provides a user-friendly interface for editing text, images, and other media, making it accessible for individuals and businesses alike. CMS platforms, such as WordPress, Joomla, and Drupal, streamline the process of website management. They allow for easy updates, collaboration among multiple users, and the integration of various functionalities through plugins and themes, enhancing the overall user experience and site performance.