Here is how fast mobile and the web are destroying the Windows monopoly

Who would have thought that in mere four years, the technological picture of the world would change drastically. The once dominant Microsoft holding a monopoly on the computing market would have become quickly outgrown by a different platform, and struggling to remain third. Back in 2009 Microsoft still held more than 70% of the market and now that has dwindled down to around 30%.
In 2013, it does not matter much which device you are using to access the web. The charts below illustrate brilliantly how the once dominant Windows operating system yielded its positions to Android and how Apple rose to become the third.
source: Business Insider