in Data & Insights

Operating System Share

When it comes to operating system share, as estimated from the relative share of web consumption observed through Quantcast’s audience measurement services, Microsoft Windows leads the market by a long way, though is experiencing a gradual decline.

Operating System Share of Web Consumption North America
Having held steady in the last three months of ‘09 (reflecting Windows 7 adoption) the decline started up again in January as a result of a strong holiday season for Apple.

OS Web Consumption Trends North America
Here we summarize the relative change in market share, so Apple’s gain in share from 10.2% in December ‘09 to 10.9% in January ‘10 reflects a +7.0% increase in Apple’s relative share in the past month.