The Personal system preferences focus largely on the look and feel of the Mac OS in addition to security settings. Hardware preferences relate to, well, your Mac’s hardware as well as peripherals.

From the files of the Total Mac Beginner Dept.: Some things on a Mac require System Preferences fiddling to fix—keyboard settings, Expose/Spaces, and ...

If you press the volume button in the Touch Bar’s Control Strip while holding the Option key, the Sound panel of System Preferences will be opened. The Display Section of System Preferences will ...

To flip the screen on your Mac, you'll need to go into the "Displays" section of your System Preferences. Not all Macs support this, however.

The Displays menu in System Preferences also has a Display tab that lets you change your monitor’s resolution, rotation, and refresh rate (if that’s an option for your monitor); a Color tab ...