- 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(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)