What is the difference between database and relational database?

What is difference between relational database and NoSQL?

Relational databases are table-based. NoSQL databases can be document based, graph databases, key-value pairs, or wide-column stores. Relational databases were built during a time that data was mostly structured and clearly defined by their relationships.

What are the differences between DBMS and Rdbms?

In DBMS, the data is stored as a file, while in RDBMS, the information is stored in tables. DBMS can only be used by one single user, whereas multiple users can use RDMBS. Client-server side interaction and architecture are only supported in RDBMS, whereas DBMS does not support client-server side interaction.