https://qooah.com/2012/10/06/%e5%be%b7%e5%9c%8b%e6%b3%95%e9%99%a2%e8%a3%81%e5%ae%9a-motorola-%e4%b8%a6%e6%9c%aa%e4%be%b5%e7%8a%af-microsoft-%e5%b0%88%e5%88%a9/