Horace Dediu at Asymco released this terrific graph showing “a brief history of personal computing platforms.” What’s unique here is the seamless move to mobile devices – Dediu’s graphic combines iPhones, iPads and Android devices with the older PC data from the time those mobile platforms emerged a few years ago. That’s a helpful move, as those platforms have clearly become an important part of personal computing in the fullest sense.
Here’s a second view of the data, by units shipped per year. Note that while PC growth is flattening, it remains at this point the leading platform – but it appears merely a matter of time until Android overtakes PCs: