Race: Best-Selling Operating Systems 1981 - 2026

These are the best selling or most popular computer operating systems from 1981 to 2026, based on market share. The latest numbers from 2003 on are readily available from Wikipedia and Statcounter. The first half of the video required a bit more research, which entailed finding and converting sales figures into market share. These numbers may be different based on what OSes are included in the stats, this is why different videos have slightly different numbers.