- 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(12)Windows Vista(12)Windows 7(12)Windows 8(12)Windows 10(12)Windows 2000(12)Windows Server 2003(12)Windows Server 2008(12)Windows Server 2012(12)Windows Server 2016(12)macOS(12)Linux(12)Android(12)iOS(12)