Usage share of operating systems computer's installed base statistics, and actual (web) use needs not follow installed base. Also, Microsoft includes tablets (but StatCounter may also for Windows, while it wouldn't for e.g. Android). Video game store Steam publishes a monthly "Hardware & Software Survey", with the statistics below: By Q1 2018, mobile operating systems that can be found on smartphones, include Google's dominant Android (and variants) and Apple's iOS, with both combined at almost 100% market share. According to research by InsightPortal, there is a clear correlation between the GDP per capita of a country and that country's respective smartphone OS market share, Showing
Usage share of operating systems of smartphones, tablets could be added giving a 63.22% majority. While an unusually high top, a similarly high also happened on Monday 17 April 2017, with then only smartphones share slightly lower and tablet share slightly higher, with them combined at 62.88%. Formerly, according to StatCounter press release, the world has turned desktop-minority; , at about 49% desktop use for that month, but mobile wasn't ranked higher, tablet share had to be added to it to exceed desktop share. For the Christmas season (i.e. temporarily, while desktop-minority remains and smartphone-majority on weekends), the last two weeks in December 2016, Australia