Before we start, let me preface this by saying this is for my curiosity only. I don't own any of this gear and nor do I intend to (barring a lottery win anyways). So if you don't want to spend you valuable time with me and want to help out a TBer who actually needs your help then by all means do so. 
I was looking at ProTools rigs, just cos I was curious. Now I get the whole source>interface>pc thing, but I don't get these controllers. I know it's possible to get mixing desks that just control the software tracks, they're called control surfaces I think. Say [Invalid or Expired Link Removed]. It comes with a DSP core and a monitor and everything. What would that need? Would I still need interfaces? A pc? Does it have output for studio monitors or would that come from the pc? Basically, is it essentially just a very full-featured mouse and keyboard for the software or is it 'smart' in and of itself?
Just curious, I find this stuff interesting.
I was looking at ProTools rigs, just cos I was curious. Now I get the whole source>interface>pc thing, but I don't get these controllers. I know it's possible to get mixing desks that just control the software tracks, they're called control surfaces I think. Say [Invalid or Expired Link Removed]. It comes with a DSP core and a monitor and everything. What would that need? Would I still need interfaces? A pc? Does it have output for studio monitors or would that come from the pc? Basically, is it essentially just a very full-featured mouse and keyboard for the software or is it 'smart' in and of itself?
Just curious, I find this stuff interesting.