- Letter:
AllA(25)B(21)C(25)D(14)E(9)F(19)G(22)H(16)I(12)J(5)K(9)L(27)M(24)N(17)O(6)P(17)Q(7)R(12)S(27)More
- Operating System:
AllWindows XP(6)Windows Vista(6)Windows 7(6)Windows 8(6)Windows 10(6)Windows 2000(6)Windows Server 2003(6)Windows Server 2008(6)Windows Server 2012(6)Windows Server 2016(6)macOS(6)Linux(6)Android(6)iOS(6)