**Window XP is the only best understandable OS then other all the OS. Even still am using only this OS because still many software are not working in other OS like vista, 7, 8, . This is support all type of software and window 7 is not support directly any kind of DOS related software. like C+ etc but window XP can support all type of software without having any problems.
Window Xp is part of the window NT family of OS, on aug 24 2001 window xp was manufacturing and after 2 month it was generally released for retail sale in market in oct. 25, 2001. This OS for any kind of official or personal purpose. it was very easy to handle the OS for beginners in computer use.
Some important features are
Enhance graphics
color based GUI
fast use switching
backup recorvery system
Direct X8.1 upgrade able to DirectX9.0C **