what is case sensitive define clearly?

[sorath]

what is meant by case sensitive define clearly in simple words

[techboy]

Case sensitive means the languages which have different meaning between Capital letters like (A,B,C..) and small letters (a,b,c..)

So generally langauges are found to be case sensitive

Languages like Html,sql(DBMS) are not case sensitive...
But
Programming Languages like C,C++,Java,php etc are case sensitive where Letters have important.
Hope you understood!Chee rs!

[donbock]

It is not only languages that can be case-sensitive. You might be asked to write a program that responds to certain keypresses. Some programs need to be case-sensitive (where 'a' causes a different action than 'A'); other programs need to be case-insensitive (where the action is the same for 'a' and 'A').