DAC vs CD Player for cd playback with computer audio - Help old timer out

Getting back into the game after along time away.  So much has changed!

I think I want to stick with Audio Research for a number of reasons, nostalgic and otherwise.

I want to play CDs and also to play files from my computer. Streaming would be nice.  How would that work out with the following setups?

1. If I have a CD player is it POSSIBLE that I could use the DAC in THAT CD Player to play my computer audio?  For example an Audio Research CD 8 from 2008.  

2. Can I use a CD transport (like the Audio Research CD2 from 2002) with an Audio Research DAC 8 (from 2012) AND run computer audio into that DAC?

Which option makes more sense for CDs and Computer audio?  How about CDs, computer audio AND streaming?

I have a headache just writing all of this out.  

Thanks in advance!