'Ballmer noted the large number of Apple machines in the crowd as he spoke, saying the Windows maker has a "low share" in the investor audience.
"I can see the Apple logos versus the PC logos," Ballmer told the crowd. "So we have more work to do, more work to do. Our share is lower in this audience than the average audience. But don't hide it. I've already counted them. I have been doing that since we started talking."'
Sorry to single you out with this reply, because there are a few posts suggesting Ballmer does not realize that there are places, professions, and industries where Macs are prominent. This quote shows that Ballmer is more than aware of this fact.