What happen when we press key on windows?

  build, cpu-architecture, keyboard, system, windows


First of all, I would say to you that I write this question from nothing because I have attempt to find good documentation but nothing stand out…

So now, I ask my question here :

What append when we squeeze a key ?

I think this is complex but I hope you can help me ^^

What I search to know : all (but especially the program start on the host machine and how the key electric signal is encoded and send…)

Thank’s a lot.

Source: Windows Questions