In other words, there are now more people worldwide using Android (mobile) devices than Windows to access the internet. In March 2017, Android took 37.93-percent of the worldwide market share, barely eclipsing Windows' 37.91-percent.
While that margin is slim, it does represent the end of Windows' dominant era and a dramatic shift in consumer behavior. By StatCounter's estimation, Android held just 2.4-percent of the global internet usage market share a mere five years ago.
Note that these statistics represent worldwide market share – they don't necessarily mirror all major markets. In North America, for example, Windows has a 39.5-percent share followed by iOS with 25.7-percent. However, Android takes 52.2-percent of the share in Asia, while Windows has only 29.2-percent.
When it comes to desktop software specifically, Windows still dominates the market, with an 84-percent internet usage share. But thanks to the rise of the smartphone and as highlighted by worldwide statistics, desktop internet use is clearly on the decline.