Activate the Screen Saver
You can set up your Mac to display a screen saver, a moving pattern or series of pictures. The screen saver appears after your computer has been idle for a while. If you leave your monitor on for long stretches while your computer is idle, a faint version of the unmoving image can endure for a while on the screen, a phenomenon known as persistence. A screen saver prevents this by displaying a moving image. However, persistence is not a major problem for modern screens, so for the most part you use a screen saver for visual interest.
Activate the Screen Saver
Open System Preferences.
Note: See the “Display System Preferences” ...
Get Teach Yourself VISUALLY Macs, 3rd Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
