Windows 1 was first released in the year 1985 and after 30 years having so many versions of Windows, Microsoft is going to release Windows 10 on 29th July 2015. MicrosoftTraining.net has created an infographic of different versions of Windows operating system till now.
As per their request, I am sharing the infographic with you. Hope, you will like that. There is also a link to the high resolution image at the end of this post.