I certainly own a "normal" computer, in fact I own two of them. I use an iMac and MacBook Pro. And yes, if I wanted to spend time administering Windows, I can run Windows on them. In fact, I have Windows installed on the iMac in Bootcamp just in case I need Windows compatibility, but it must be many months since I did that!
If I wanted to, I could use Bluestacks to emulate Android on these computers under Mac OS X , but I choose not to because I like the touch interface of my iPad. The app works really, really well on my iPad 4.