DBMS stands for Database Management System. This is a program which is used to control them. It is like a File Manager that manages data in a database rather than saving it in file systems.
Database management system is an interface between the database and the user. It makes the data retrieval, data access easier.
Database management system is a software which provides us the power to perform operations such as creation, maintenance and use of a data of the database using a simple query in almost no time.
Without the database management system, it would be far more difficult for the user to access the data of the database.