- Letter:
AllA(29)B(31)C(14)D(10)E(9)F(43)G(42)H(9)I(6)J(8)K(8)L(10)M(27)N(9)O(4)P(34)Q(6)R(12)S(14)More
- Operating System:
AllWindows 95(12)Windows 98(12)Windows Me(12)Windows 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)Mac OS Classic(12)macOS(12)Linux(12)Android(12)iOS(12)