Problem
A.	Difference between database and database management system.
B.	The importance of database management systems.
C.	What types of users can a Database have investigate?
D.	What is the difference between a Database Administrator and an Application Programmer who interact with Databases?
E.	Do some research on database model types: hierarchical, network, relational, and object-oriented. What they consist of, their advantages and disadvantages.
F.	Relational and non-relational databases. Definition. Advantages and disadvantages. Examples of relational and non-relational DBMS.