The four pie charts illustrate the global market share of three computer operating systems (OS 1, OS 2, and OS 3) compared to other systems from 2012 to 2015.
Overall, OS 1 gradually increased its market share over the period, while OS 2 and OS 3 experienced fluctuations. Meanwhile, the proportion of other operating systems declined significantly.
In 2012, OS 1 held 30% of the market, but this figure rose steadily each year, reaching 52% in 2015. On the other hand, OS 2 accounted for 15% of the market in 2012, increased slightly to 17% in 2015, but remained the smallest segment. OS 3, which had a 10% share in 2013, saw a minor rise to 12% in 2014 but then dropped back to 13% in 2015.
The most notable trend was the decline in the market share of other operating systems. In 2012, they dominated the market with 48%, but this figure continuously decreased, falling to just 15% by 2015. This suggests that OS 1 became the leading system, replacing many smaller competitors.
In conclusion, OS 1 experienced the most significant growth, while other operating systems lost their dominance. OS 2 and OS 3 remained relatively stable but did not see major improvements.