The pie charts compare the market share of different computer operating systems worldwide over a four-year period, starting from 2012.
Overall, in 2012, the three main systems – Os1, Os2, and Os3 – showed minor differences in terms of their popularity. However, over the next three years, the share of Os1 increased steadily, and this system remained consistently dominant in the market. In contrast, the share of Os2 remained almost unchanged, while the popularity of other systems declined over the surveyed period.
At the beginning of the period, Os1 accounted for 20% of the market, making it the most popular operating system, closely followed by Os2 and Os3, with respective shares standing at 17% and 15%. Other systems made up the remaining 48% of the total.
In 2013, the market share of Os1 doubled to nearly 40% and then peaked at 52% over the next two years, solidifying its position as the leading system. Meanwhile, the market share of Os2 remained unchanged at 17% by 2013, after which it experienced a modest increase of just 1% by the end of the period, keeping its position as the second most popular operating system. In terms of Os3, this system had recorded a slight drop in market share by 2013, falling to 10%, but it later recovered to its initial share of 15% in 2015. The other operating systems struggled to compete with the three main systems, as their market shares declined and hit a low of 15% in the final year of the surveyed period.