The Darwinian Evolution of Microsoft Windows
This nice picture shows how Windows operatings systems came into use from year 1985 with Windows 1.0 to Windows 7 in 2009.
See the attachment or click on the below image for full image
Source : http://www.coolinfographics.com/blog/2010/10/5/the-darwinian-evolution-of-microsoft-windows.html
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