The provided pie charts compares three primary computer operating systems with others in terns of the market share over four consecutive years starting in 2012.
Overall, there was a significant shift in the popularity of these systems, with the others being predominant initially while the three OS types became more exhibited remarkable growth except for OS 3, indicating the changes in customer preferences.
In 2012, nearly half of the entire computer industry was dominated by other OS systems, at 48%. The OS 1 followed at only 20%, which was slightly ahead of the OS 2, accounting for 17%. Meanwhile, the OS three lagged behind at only 15% of the market share.
Thereafter, there were some significant developments. Having been the most popular choice, other os systems consistently lost its competitiveness, plunging to 23% in 2004. A similar, albeit less pronounced, pattern can be seen in the OS 3, fluctuating before declining to 12% by the end of the period. Finally, the figures for the OS 1 and OS 2 demonstrated a steady increase, with some fluctuation, ending at 47% and 18%, respectively.