- Letter:
AllA(23)B(20)C(23)D(12)E(8)F(17)G(12)H(15)I(11)J(11)K(12)L(12)M(22)N(17)O(9)P(16)Q(6)R(11)S(25)More
- Operating System:
AllWindows 95(122)Windows 98(122)Windows Me(122)Windows XP(122)Windows Vista(122)Windows 7(122)Windows 8(122)Windows 10(122)Windows 2000(122)Windows Server 2003(122)Windows Server 2008(122)Windows Server 2012(122)Windows Server 2016(122)Mac OS Classic(122)macOS(122)Linux(122)Android(122)iOS(122)