>Gaming is what made Windows dominate personal computing - not Word, Excel or Powerpoint.
Being the default OS is what made Windows dominate personal computing. The average person doesn't think about what OS they use at all, even when they're thinking about getting a Macbook.
I suggest you go an read some of the blog post by Alex St. John, one of the original DirectX developers, explaining why they were task with creating DirectX in the first place..
And anyway, the the Windows dominance was cemented way, way before Macbooks even existed, at a time when people were very much thinking about the OS they were using..
Being the default OS is what made Windows dominate personal computing. The average person doesn't think about what OS they use at all, even when they're thinking about getting a Macbook.