A Content Management System (CMS) is a software application that allows users to create, manage, and modify digital content without needing specialized technical knowledge. It provides a user-friendly interface for adding text, images, and other media to websites, making it accessible for individuals and businesses to maintain their online presence. CMS platforms often include features like templates, plugins, and user permissions, which help streamline the content creation process. Popular examples of CMS include WordPress, Joomla, and Drupal, each offering various tools and functionalities to cater to different user needs and preferences.