- Letter:
AllA(29)B(31)C(17)D(10)E(9)F(43)G(42)H(11)I(8)J(8)K(8)L(10)M(27)N(12)O(4)P(34)Q(6)R(12)S(19)More
- Operating System:
AllWindows 95(274)Windows 98(274)Windows Me(274)Windows XP(274)Windows Vista(274)Windows 7(274)Windows 8(274)Windows 10(274)Windows 2000(274)Windows Server 2003(274)Windows Server 2008(274)Windows Server 2012(274)Windows Server 2016(274)Mac OS Classic(274)macOS(274)Linux(274)Android(274)iOS(274)