Microsoft has released many OS versions over the past and it turns out its latest Windows 7 is the least expensive of them all. Most of the Microsoft OS were in the price range of up to $200 with the exception of Vista Home Premium, which touched the $260 mark. Even the pro versions of Windows, starting NT reached a mark of $320 while the Windows 7 versions are still available at $50 for the Home Edition, $100 for the Professional version and $220 for the Ultimate version. Check out the images to check the sticker prices and the adjusted inflation prices for the different OS released by Microsoft and Windows 7 emerges as the undisputed winner with the lowest price.

[Gizmodo]