What is the role of a Database Management System (DBMS)?

A Database Management System (DBMS) plays a crucial role in managing data effectively within an organization. Its primary function is to facilitate the management of related files, which involves organizing, storing, and retrieving data efficiently. By providing a systematic way to create, read, update, and delete data, a DBMS ensures that data is both accessible and secure.

The ability to manage related files means that the DBMS can establish relationships between different data sets, allowing for complex queries and data manipulation which is essential for decision-making processes. Users can retrieve specific information quickly through structured query languages, making it easier to analyze and derive insights from data.

The other options do not accurately describe the core purpose of a DBMS. Creating graphics for presentations relates to applications focused on visual representation rather than data management. Storing data only in unstructured formats overlooks the DBMS's capability to handle structured data, which is essential for efficient database operations. Processing high-speed transactions is a function of certain database systems, especially in high-performance environments, but it is not indicative of the overall role of a DBMS, which encompasses much broader operational responsibilities beyond just transaction processing.