Windows Phone (abbreviated as WP) is Microsoft on October 21, 2010 officially released a mobile phone operating system, the initial version named Windows Phone 7.0.
Windows CE-based core, using a technique called Metro user interface (UI), and Microsoft’s Xbox Live games, Xbox Music music and unique video experience integrated into the phone.
February 2011, Nokia and Microsoft reached a global strategic alliance to jointly develop and depth of the system.
September 27, 2011, Microsoft released an upgraded version of Windows Phone 7.5
Nokia and Microsoft reached a global strategic