How are Windows 8 and 8.1 different from Windows 7 in features and enhancements from a non-geek point of view? For example, new hardware sections in control panel and menu panel on right vertical interface. Please note that response should include features which are common to both Win 8 and Win 8.1 but absent in Win 7. Difference between Win 8 and Win 8.1 would be added bonus to answer. Is there a good chart from basic (non-geek) point of view to cover all such distinguishing features and enhancements?