- Letter:
AllA(18)B(13)C(15)D(9)E(11)F(47)G(15)H(10)I(10)J(3)K(7)L(8)M(42)N(10)O(3)P(14)R(18)S(16)T(12)More
- Operating System:
AllWindows XP(10)Windows Vista(10)Windows 7(10)Windows 8(10)Windows 10(10)Windows 2000(10)Windows Server 2003(10)Windows Server 2008(10)Windows Server 2012(10)Windows Server 2016(10)macOS(10)Linux(10)Android(10)iOS(10)