difference between: Pragma, CACHE-CONTROL, and robots=noarchive

I've been doing a research to fully understand the difference between these three concepts..

My main intention is to have google not to cache my site, i'm not sure if i should add all three :

<META HTTP-EQUIV="Pragma" CONTENT="no-cache">

<META HTTP-EQUIV="CACHE-CONTROL" CONTENT="no-cache">

and

<META NAME="robots" CONTENT="NOARCHIVE">

or that is not how I'm supposed to use them ???

Regards,

 

I haven't find anything yet, can anybody support this important and interesting threat ??? please