Removing items from system preferences

I have 3 unknowns to my system preferences that is no longer, I do not know how to remove.  I think they are in the library? or what?

Open system preferences.  Go to view, then customize.  You should now see check marks next to everything.  Simply uncheck what you no longer need, and then click on 'Done', which is right next to the up arrow buttons.

Tags: Mac OS & System Software

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    Scott@pdb1orcl12 > /.
    DSL, ADSL, 100, 20
    IPTV, N/A,
    CABLE, CATV_FTTH, 50.
    ADSL, VDSL, 100, 20

    PL/SQL procedure successfully completed.

    Scott@pdb1orcl12 >

    SY.

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