- Letter:
AllA(3)B(9)C(3)D(18)E(2)F(13)M(3)N(5)P(4)S(6)T(3)U(2)V(1)W(2)Z(5)Symbol(17)Digital(3)Other(10)
- Operating System:
AllWindows 95(5)Windows 98(5)Windows Me(5)Windows XP(5)Windows Vista(5)Windows 7(5)Windows 8(5)Windows 10(5)Windows 2000(5)Windows Server 2003(5)Windows Server 2008(5)Windows Server 2012(5)Windows Server 2016(5)Mac OS Classic(5)macOS(5)Linux(5)Android(5)iOS(5)