What is Data and Database

DATA : Data is a raw fact or a figure that doesn't have its own meaning . In other words through data an object can not be identified.

Example : Employee number , name , salary of an employee individualy known as one - one data , these things will not give any meaning when individually taken into consideration.

Organized collection of related data is known as information through which an object can be clearly identified.

Organized collection of related information of a particular group is known as a datafile .
Example : Sales Department , Purchase Department , Admin Department of a particular company individually maintains the datafile.

DATABASE : 'Database is an organized collection of related datafiles '.

So , as if now you all are clear with the picture :

Note : Though data is a raw fact through which an object cannot be identified but it is the minimum requirement to build the database.

Now the question arises WHY DATABASE ? ? ? ? ? ?
Database is maintained to keep track of an object day to day activities.

Database has no scope (limitations) that means it can be implemented on small scale industries or to large scale coorporate house.

Now , database can be maintained in three different ways :
1.Paper / Cabinet File
2.Spreadsheet
3.DBMS / RDBMS

DBMS : Database Management System is simply a software responsible to store , retrieve and modify the data of a database on user request. 
Here , of a database is important because there are different types of database eg : Network , Hierarical , Relational and Object Relational which I will cover in detail in my next tutorial.

Now a days we prefer DBMS / RDBMS (Relational Database Management System) because data redundancy is less and data security is more.