Explanation:
A database management system (DBMS) is a software system that allows users to interact with a database. It provides a convenient and efficient way to store, manage, retrieve, and manipulate data.

A DBMS consists of several components that work together to ensure the smooth functioning of the database. These components include:

1. Data: Data is the primary component of a database. It refers to the collection of facts, figures, and information that is stored in the database. Data can be in various forms, such as numbers, text, images, and multimedia.

2. Software: Software refers to the programs and applications that are used to create, manage, and access the database. It includes the DBMS software itself, as well as any other software tools or applications that are used to interact with the database.

3. Users: Users are the individuals or entities who interact with the database. They can be categorized into different types, such as database administrators, developers, and end-users. Users interact with the database by executing queries, performing data entry and retrieval, and generating reports.

4. Hardware: Hardware refers to the physical equipment that is used to store and process the database. This includes servers, storage devices, network infrastructure, and other computing resources that are required to support the database.

Among these components, the only component that is not a part of a DBMS is Hardware. While hardware is essential for the functioning of a database system, it is not considered a component of the DBMS itself. The DBMS software runs on the hardware and utilizes its resources to store and process the data.

In conclusion, the correct answer is option B) Hardware

Hardware is not a component of a DBMS. A DBMS primarily consists of data, software, and users. Hardware refers to the physical devices that store and process data.