Ans:

DBMS:

A DBMS is a storage area that persist the data in files. To perform the database operations, the file should be in use.
Relationship can be established between 2 files.
There are limitations to store records in a single database file depending upon the database manager used.
DBMS allows the relations to be established between 2 files.
Data is stored in flat files with metadata.
DBMS does not support client / server architecture.
DBMS does not follow normalization. Only single user can access the data.
DBMS does not impose integrity constraints.
ACID properties of database must be implemented by the user or the developer

RDBMS:

RDBMS stores the data in tabular form.
It has additional condition for supporting tabular structure or data that enforces relationships among tables.
RDBMS supports client/server architecture.
RDBMS follows normalization.
RDBMS allows simultaneous access of users to data tables.
RDBMS imposes integrity constraints.
ACID properties of the database are defined in the integrity constraints.