What is CMS...?
Content Management System (CMS) generally refers to an web-based application that enables multiple users with different privilege levels to manage any type of data, content or information of any website application, project on the internet forum.
CMS or Content Management System is a web application to manage the content (Text, Images, Videos, audios,) of a website. Basically, you can create a website using a CMS without having much knowledge about the web developing languages. It has the drag and drop like features to add the content.