Visual Composer

Hi A Very Good Morning ,

I have browsed an hour for Visual Composer concept...!!!!!...Like..Wht is VC...how it came...and wht it does.....wht r its features....and how effective it is.....!!!!!,but I couldn't able to get.....

I have been searching for striaght answer......but....found lot of unwanted stuff...like how to integrate VC with XII...and how to design input forms....etc...etc...

But with out knwing wht is VC....and its background.....wht z the use of all those...So....can you pls help me out in this...????

For perfect answers point will be rewarded...I dont expect people will only answer for points..but still....this is the only thing that I can give in return for your great help...so......

Regards

Lucky