Woow, only two replies to give me everything I wanted
Thank you acid_kewpie for a perfect brief explanation.
Thank you michaelk for a tremendously great link for an in depth view.
Lot's of appreciation !!!!
If the world was like this forum, and the leaders of this world like the moderators, the world would kick heavens ass if it comes to being a paradise.
Really, keep up the very very good work and especially the very good attitude.