A Database Management System (DBMS) is software that enables users to create, manage, and manipulate databases. It provides a systematic way to store, retrieve, and organize data, ensuring that it is easily accessible and secure. Common types of DBMS include relational, NoSQL, and object-oriented systems, each designed for different data storage needs. DBMS allows multiple users to interact with the database simultaneously while maintaining data integrity and security. It uses a structured query language (SQL) for managing and querying data, making it easier for users to perform operations like adding, updating, or deleting records within the database.