The document provides information about database management systems. It defines a DBMS as software that allows storage, retrieval, modification and deletion of data from a database. It then discusses different types of DBMS like hierarchical, network, relational, flat file and object oriented. Examples of popular DBMS are also listed including SQL, Oracle, FoxPro, MS Access and MySQL. Key advantages of DBMS are efficient data storage, security, concurrent access and integrity maintenance.