IDE – What goes on “under the hood”

I realise that this will be nothing new to many of you experienced guys but I found this a very interesting explanation of what actually happens when you use the Arduino interface. This is a looong article so be prepared – Pedro

http://urbanhonking.com/ideasfordozens/2009/05/18/an_tour_of_the_arduino_interna/

That's more an explanation of how your sketch works than one of what the IDE does. (although, it looks quite well done!)
For the IDE/Build process description, check here: Redirecting