- Letter:
AllA(3)B(6)C(7)D(29)E(3)F(17)G(5)H(6)K(13)L(4)M(8)N(30)R(3)S(14)T(5)U(2)X(4)Symbol(5)Digital(3)More
- Operating System:
AllWindows 95(13)Windows 98(13)Windows Me(13)Windows XP(13)Windows Vista(13)Windows 7(13)Windows 8(13)Windows 10(13)Windows 2000(13)Windows Server 2003(13)Windows Server 2008(13)Windows Server 2012(13)Windows Server 2016(13)Mac OS Classic(13)macOS(13)Linux(13)Android(13)iOS(13)