I dunno. To me both the Apple bar and the MS bar do the same thing, offer a target in accordance to Fitts&#x27; Law.<p>While the layout of the menu itself changed some over the years, the base location in the bottom left has remained the same.<p>Even with Windows 8 you could get to the startscreen(?) by flicking the mouse to the bottom left corner. That would case a square to come into view holding a preview of said screen.