Add Access System Information On OS X as a mac til

mac/access-system-information-on-osx.md

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+# Access System Information OS X
+
+On machines running OS X, there is an Apple icon in the upper left corner as
+part of the menu bar. Clicking on this icon reveals a number of options. The
+first reads _About This Mac_.
+
+If you hold down the `option` key, however, that first option will instead
+read _System information..._
+
+Select that option to access the System Information panel which can tell you
+details about your hardware, software, and network.
+
+h/t Dillon Hafer