You know the story: he’s a Mac and the other one is a PC. And they make adorable geekish conversation.
You can now watch all their blurbs in a exhaustive collection on YouTube. I've posted the first part above; check out the second and third installations below.
The first photo needs no introduction, and the second one is from a fun post from WIRED magazine called Totally Embarrassing 1996 “Get a Mac” Precursor.