Add Access System Information On OS X as a mac til

Author: jbranchaud

README.md

@@ -10,7 +10,7 @@ smart people at [Hashrocket](http://hashrocket.com/).
 For a steady stream of TILs from a variety of rocketeers, checkout
 [til.hashrocket.com](https://til.hashrocket.com/).
 
-_668 TILs and counting..._
+_669 TILs and counting..._
 
 ---
 
@@ -278,6 +278,7 @@ _668 TILs and counting..._
 
 ### Mac
 
+- [Access System Information On OS X](mac/access-system-information-on-osx.md)
 - [Clean Up Old Homebrew Files](mac/clean-up-old-homebrew-files.md)
 - [Default Screenshot Location](mac/default-screenshot-location.md)
 - [Display A Message With Alfred](mac/display-a-message-with-alfred.md)

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

@@ -0,0 +1,13 @@
+# 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