DBMS definition and major components | RGPV PYQ

RGPV 2018
Define database management systems (DBMS). What are the major components of this system ? Explain each component.

Ans. A DBMS is used for storing, manipulating, and managing data.
Some examples of DBMSs: 
  1. MySQL, 
  2. Microsoft SQL Server, 
  3. Microsoft Access, 
  4. Oracle
In DBMS an organized collection of structured information, or data, typically stored electronically in a computer system is known as database.
The data and the DBMS, along with the applications that are associated with them, are referred to as a database system.
Some types of databases:
  1. Hierarchichal databases.
  2. Network databases.
  3. Object oriented databases.
  4. Relational databases.
  5. NoSQL databases.
Some components of DBMS:
  1. Software: DBMS software, operating systems, networking softwares etc.
  2. Hardware: Harddisk, RAM, I/O device, etc.
  3. Data: Values stored in DBMS.
  4. Data dictionary: it stores information about data.
  5. Database administrator: The admin in DBMS.
  6. Database access languages: DDL, DML, DCL, TCL, etc.