database management system

Definition:  A program that sorts, links, and otherwise organizes and manages data in a database. DBMS may also assist in the analysis of data and the preparation of reports.
 http://www.amersol.edu.pe/hs/technology/itgs/GlossaryofTerms.asp#D
Example: Some of the more popular relational database management systems include:

• Microsoft Access
• Filemaker
• Microsoft SQL Server
• MySQL
• Oracle
http://www.quackit.com/database/tutorial/database_management_systems.cfm

Picture:

http://www.quackit.com/pix/database/tutorial/relational_databases_1.gif