The four pie charts aim to illustrate how many of the three computer operating systems compared to others were bought in the world market within a timespan of 4 years, commencing in 2012.
Overall, while the percentage of Os 1 increased dramatically during the surveyed period, the reverse was true for that of other Os. Additionally, the figure for Os 3 in 2012 was the same as in 2015. Another key feature is that Os 2 was the most unpopular system.
In 2012, the proportion of Os 2 stood at 17%, which remained over the next year. This figure rose steadily by 1% in 2014 and 2015. Furthermore, an upward trend was recorded in the data on Os 1, which climbed significantly from one-fifth to 52% ranking the first compared to the others between 2012 and 2015.
Regarding the remaining counterpart, the percentage of Os 3 which was used in 2012 registered the lowest in comparison with other counterparts, with 15%. The figure then declined to 12% in 2014 before returning to its original level at the end of the period. Similarly, 48% of other Os in 2012 dropped remarkably to 15% in 2015, which was equal to the proportion of Os 3.