The analytical company Azimco has drawn an interesting graph on the number of devices shipped for almost forty years: from 1975 to 2011.
Rather, this is information for reflection, a small summary of the high-tech market, but, as it seemed to us, very interesting, reflecting the situation currently developing in the market in a historical perspective.
It is not worth making far-reaching conclusions based on it, especially since it seems quite bold to put mobile devices next to desktop ones. Nevertheless, the chart shows the overall scale of the market very well. You can find out more about the research materials on the website of Azimco.