audio ?

[eLine]

Hello I'm totally new to the program and also new to PC (always been a mac
user). I'm trying to figure out PD. 
Now my firsat (probably real easy) question is: how do I get audio from
e.g. CD in the program ? 
this adc~ thing ? and how to set it up ?

So that I can just have a few audio tracks to maybe live sample or just
turn off and on...

I hope someone can help me out a little bit through this list,

Thank you, 

Greetz,

eLine.

PS I find the online documentation somewhat restricted (with all due respect).