HT201260: Find the macOS version number on your Mac

Learn about Find the macOS version number on your Mac
Yadafa
Level 1 (0 points)

Q: what is the "number of system"? and how to find it?

what is the "number of system"? and how to find it?

MacBook Pro, Mac OS X (10.7.4), FOr update to mountain lion

Posted on Jul 25, 2012 9:18 AM

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Yadafa

Q: what is the "number of system"? and how to find it?

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  • by Kurt Lang,

    Kurt Lang Kurt Lang Jul 25, 2012 9:20 AM in response to Yadafa
    Level 8 (37,815 points)
    Mac OS X
    Jul 25, 2012 9:20 AM in response to Yadafa

    Click on the Apple at the top left and choose About This Mac. The version number will be shown.

     

    If you mean the Mac's serial number, with the same dialogue box up, click where the version number is shown. It will rotate between that, the build number, and your serial number.