- Letter:
AllA(16)B(29)C(11)D(6)E(7)F(41)G(19)H(9)I(5)J(2)K(5)L(6)M(50)N(13)O(3)P(32)Q(6)R(5)S(54)More
- Operating System:
AllWindows 95(9)Windows 98(9)Windows Me(9)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(9)macOS(13)Linux(13)Android(13)iOS(13)