As the map below shows, Android/Linux has overtaken desktop operating systems over much of the world, a huge swath through Asia and most of Africa. Along with skipping lock-in to Wintel, many folks are skipping copper and cable and satellite for WiFi. Further, a huge chunk of the world has Android/Linux in second or third spot. The PC may not be dead yet but it’s certainly changed. It now fits in a pocket and comes without a licence from M$.
Top Operating Systems Per Country, W02 2015