The pie chart compares the market share of different computer operating systems worldwide over a four-year period, starting from 2012.
Overall, Os 1, Os2 and Os 3 manifested minor differences in 2012, while in 2015, Os 1 grew steadily, remaining dominant. Notably, Os 2 remained stable, while others showed decline.
In 2012, Os 1 accounted for 20% of the market, making it the most popular system, closely followed by Os 2 and Os 3, with 17% and 15% respectively. Others made up the remaining 48% of the total.
From 2013 to 2015, Os 1 doubled to about 40% in 2013, and peaked at 52% in 2015. There was an unstable stagnation at 17% in the ratio of Os 2 in 2015, before rising slightly to 18% in 2014 and 2015, maintaining its second place. In terms of Os 3, it saw a steady decline to 10% in 2013, but it later recovered to its initial share of 15% in 2015. While others registered a considerable decrease, hitting the low of 15% in 2015.