The given pie charts compare the global market share for three computer operating systems to others over a 3-year period, starting in 2012.
Overall, it can be easily witnessed that while there were significant changes in the market share for the computer operating systems 1 and others, those for operating systems 2 and 3 were almost unchanged. Moreover, the bar charts shown that the global sale dominance was the operating system 1 through the mentioned period.
Getting into details, in 2012, the worldwide market share for others computer os was the leading one with 48% , followed by the computer operating systems 1 with 20% and the others with 17% and 15% of proportion of operating systems 2 and os 3, respectively. In the next year, the international market experienced the dominance of the computer operating systems 1, which was 38%, having 3% more than the previous leading system. Meanwhile, that of computer operating systems 2 remained stable at 17% and computer operator systems 3 dropped slightly by 5% in the same year.
With the same pattern, in 2014, the global sales percentage of computer operating systems 1 grew to 47%, nearly doubling that of others computer os except for operating systems 2 and 3, which took 12% and 18% of total share respectively. The following year witnessed the rocket of the share for computer os 1 when it got more than half of the share of all (52%), while the operating systems 2 kept its rate at 18% and the others shared approximately 15% each.