What is the difference between Database Management System and Relational Database Management System ?

Answer 1

Database management system(DBMS) is a collection of hardware, software and database for storing and retrieving data from database. Relational database management system(RDBMS) is a schema for storing data. It may store data in tabular format. It stores data in relation to one another using constraints like primary key, foreign key.

Answer 2

A DBMS help you manage databases INDIVIDUALLY.
RDBMS involves linking of 2 or more Databases.
If you have ever heard of JOINS, thats a nice example.