I think they meant the hardware.
Maybe, but I am pointing out that the real differences aren't in the hardware, they're in the OS. Line up ten PCs from ten PC-makers, and no matter how different they may look, they all work in precisely the same way.
Yes, but you have to realize that this is apple's fault. Apple doesnt let anyone use their OS unless you buy their comparatively expensive hardware. You cant blame the other computer manufacturers for lack of OS choices when Apple is to blame for a large part of it.
It's not Apple's fault, not in the least. The IBM-PC compatible market evolved in its own, unique and peculiar way. This had nothing at all to do with Apple, and everything to do with historical accidents which befell IBM and benefited Microsoft, and beyond that, to Microsoft's illegal anticompetitive practices.