To understand what a DBMS or a database management system is, we must understand what a database is. A database is nothing but an organized collection of structured data or information that is generally stored in a computer.
A database usually interacts with a database management system (DBMS) to let the user control and manage the data stored in it. A DBMS is nothing but software or interface that allows complete control over the data such as creating, reading, editing, deleting, etc. It also facilitates access control systems and other services like backups, reporting, storage, security, and more.