That actually was done toward the tail end of the 1980s PC wars. The Commodore Amiga and several other machines could sport x86 add on boards that would let the

That actually was done toward the tail end of the 1980s PC wars. The Commodore Amiga and several other machines could sport x86 add on boards that would let them run DOS apps natively. It would not be good for a laptop though, and that is almost all of Mac sales. Too much space and power consumption.