A database server is a specialized computer system that stores, manages, and provides access to databases. It allows multiple users and applications to retrieve and manipulate data efficiently. Database servers use a database management system (DBMS) to handle tasks such as data storage, security, and backup, ensuring that information is organized and easily accessible. These servers can support various types of databases, including relational databases like MySQL and PostgreSQL, as well as NoSQL databases like MongoDB. They are commonly used in businesses and organizations to manage large volumes of data, enabling better decision-making and streamlined operations.