How do you change your Mac’s screen resolution? It depends on whether you have an external monitor connected, but our guide makes it super clear and easy to do.

Here’s how to split your screen on either a Mac or Windows computer, a great tool for multitasking. Splitting your screen is a great tool for multitasking. (Photo by Phil Barker/Future ...

From the Desktop & Dock section of System Settings, you’re able to adjust the size and magnification levels, auto-hide the dock, and change its position on screen.