A database is an organized collection of structured data stored electronically. A database management system (DBMS) is the software that stores, retrieves and manages that data.
Its advantages:
Data independence, so applications don't depend on how the data is stored.
Integrity, because constraints keep the data accurate and consistent.
Security through access control and authentication.
Concurrent access by many users at the same time.
Built-in backup and recovery.
Less redundancy, with duplicate data kept to a minimum.
Central control of every data operation.
Rewriting in plainer words…
This answer doesn't lend itself to a diagram - it reads best . No credits were charged.
