1
Data refers to raw, unprocessed facts such as numbers, names, text, images, audio, or video.
2
Information is processed data that has been organized into a meaningful context (e.g., the age of Suresh is 25).
3
A database is a logically coherent collection of related data designed for a specific purpose and representing an aspect of the real world (miniworld).
4
Metadata is the database definition, providing a complete description including storage formats, data types, and constraints.
5
A Database Management System (DBMS) is a software collection that enables users to create, maintain, define, construct, manipulate, and share databases.
6
Key DBMS functionalities include defining data structures/constraints, constructing/storing data, manipulating data via queries and updates, sharing data concurrently, protecting against unauthorized access, and long-term maintenance.