- Letter:
AllA(24)B(21)C(24)D(13)E(8)F(18)G(13)H(44)I(12)J(5)K(14)L(12)M(23)N(16)O(6)P(16)Q(9)R(12)S(26)More
- Operating System:
AllWindows 95(3)Windows 98(3)Windows Me(3)Windows XP(7)Windows Vista(7)Windows 7(7)Windows 8(7)Windows 10(7)Windows 2000(7)Windows Server 2003(7)Windows Server 2008(7)Windows Server 2012(7)Windows Server 2016(7)Mac OS Classic(7)macOS(7)Linux(7)Android(3)iOS(7)