What is Root, Rooting and how it is important for android ?

what it is rooting and rooting it necessary to do ?
What is Root, Rooting and how it is important for android
what is rooting ? why should i do it


what it is rooting and rooting it necessary to do

there may be some users android yangg not quite know what it is rooting.
yes kira2 need not rooting it?
I just want to share an article about rooting, the extent of my knowledge

Q: What is root?