Windows XP is a line of operating systems produced by Microsoft for use on personal computers, including XP Home, XP Professional & XP Media Center Edition.Windows XP was first released on 25 October 2001, and over 400 million copies were in use in January 2006. The most common editions of the operating system are Windows XP Home Edition, which was built for home users, and Windows XP Professional, which offers additional features such as support for Windows Server domains and two physical processors, and is targeted at power users.If …