To see if your Mac is using storage as RAM, look at the Swap Used indicator at the bottom of Activity Monitor. Observing Activity Monitor even for a few seconds is enough to see how the most ...

How to Check Your CPU Usage on Mac with Activity Monitor macOS comes with a built-in utility called Activity Monitor that helps you identify and troubleshoot problematic apps and processes on your ...

Once the activity monitor is open, closing an app is pretty simple. Activity Manager offers more detail and the option to Force Quit background apps.