I don't think it is appropriate to have the smartphones and tablets as a %market share competing against desktop platforms such as mac/pc. For one, while in gen

I don't think it is appropriate to have the smartphones and tablets as a %market share competing against desktop platforms such as mac/pc. For one, while in general people either own a mac xor a pc, people in general don't own a smartphone xor a desktop (I assume). The graphs at the beginning showing sales seem to be the least misleading in this case, and don't show the sudden drop in sales which existed for other older systems such as Amiga, atari, etc. In this sense it seems pcs are still going steady with a nearly saturated market, and people are now adopting both a smartphone and a desktop. At least, that is my interpretation from a single graph, presumably other opinions exist.