- Letter:
AllA(2)B(6)C(32)D(11)F(8)G(6)H(25)I(24)K(8)L(6)M(4)N(2)P(1)R(4)S(3)T(2)V(3)X(7)Symbol(4)More
- Operating System:
AllWindows 95(2)Windows 98(2)Windows Me(2)Windows XP(4)Windows Vista(4)Windows 7(4)Windows 8(4)Windows 10(4)Windows 2000(4)Windows Server 2003(4)Windows Server 2008(4)Windows Server 2012(4)Windows Server 2016(4)Mac OS Classic(2)macOS(4)Linux(4)Android(4)iOS(4)