On your Mac, choose Apple menu > System Settings, click General in the sidebar, then click Sharing on the right. If you’re sharing your computer’s screen, allowing remote logins or management, or sharing files, other users may need to know your computer’s network address instead of its name to access these services.
Make and receive phone calls on your Mac.Use one keyboard and mouse to control Mac and iPad.Use Live Text to interact with text in a photo.Make it easier to see what’s on the screen.
Install and reinstall apps from the App Store.