1. Classified by the number of users.
1.1 Single-user DBMS or Personal Database
Ex: Standalone Personal Computers, Microsoft Access, etc.
1.2 Multi-user DBMS
If the number of users is 50 people, it is called Enterprise Database.
2. Classified by location of the database sites.
2.1 Centralized DBMSs store data on a single CPU bound
to a single certain physical/geographical location.
2.2 Distributed DBMSs in which all the information is
stored on multiple physical locations.