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macOS 27 Golden Gate

macOS Sequoia 15

macOS Sonoma 14

macOS Ventura 13

macOS Monterey 12

macOS Big Sur 11.0

macOS Catalina 10.15

macOS Mojave 10.14

macOS High Sierra

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Table of Contents

Welcome
- MacBook Neo
- MacBook Air
- MacBook Pro
- iMac
- Mac mini
- Mac Studio
What’s new in macOS 27
- Desktop, menu bar, and Dock
- Quickly change settings with Control Center
- Find what you need with Spotlight
- Get notifications
- Organize your files in the Finder
- Adjust brightness and volume
- Keyboard and trackpad
- Browse the web
- Preview a file
- Take a screenshot
- Print documents
- Keyboard shortcuts
- Download apps
- Apps on your Mac
- Open apps
- Work with app windows
- Tile app windows
- Use apps in full screen
- Use apps in Split View
- Use Stage Manager
- Get apps from the App Store
- Install and reinstall apps from the App Store
- Install and uninstall other apps
- Create and work with documents
- Open documents
- Mark up files
- Combine files into a PDF
- Organize files on your desktop
- Organize files with folders
- Tag files and folders
- Back up files
- Restore files
- Change System Settings
- Choose your desktop picture
- Add and customize widgets
- Use a screen saver
- Add a user or group
- Add your email and other accounts
- Automate tasks with Shortcuts
- Create Memoji
- Change your login picture
- Change the system language
- Get started with Siri AI
- Turn on and activate Siri
- Customize Siri
- Create original images with Image Playground
- Create your own emoji with Genmoji
- Use Writing Tools to write, improve, and summarize content
- Turn on ChatGPT
- Summarize notifications and reduce interruptions
- Apple Intelligence and privacy
- Turn off and restrict access to Apple Intelligence features
- Intro to Continuity
- Use AirDrop to send items to nearby devices
- Hand off tasks between devices
- Control your iPhone from your Mac
- Copy and paste between devices
- Stream video and audio with AirPlay
- Make and receive calls and text messages on your Mac
- Use your iPhone internet connection with your Mac
- Share your Wi-Fi password with another device
- Use iPhone as a webcam
- Insert sketches, photos, and scans from iPhone or iPad
- Unlock your Mac with Apple Watch
- Use your iPad as a second display
- Use one keyboard and mouse to control Mac and iPad
- Sync music, books, and more between devices
- Get started with Screen Time
- Set up Screen Time for yourself
- Track app and device usage
- Set schedules and Time Allowances with Screen Time
- Block features or content with Screen Time
- Manage Apple Account settings
- Set your Apple Account picture
- What is iCloud?
- What is iCloud+?
- Store files in iCloud Drive
- Share and collaborate on files and folders
- Manage iCloud storage
- Use iCloud Photos
- Play music
- Watch and listen together with SharePlay
- Listen to podcasts
- Watch TV shows and movies
- Read and listen to books
- Read the news
- Write in your journal
- Track stocks and the market
- Play games on your Mac
- Set up Family Sharing
- Get Family Sharing recommendations
- Add family members to a Family Sharing group
- Remove family members from a Family Sharing group
- Share a Photo Library
- Collaborate on projects
- Find content shared with you
- Find your family and friends
- Connect an external display
- Use the camera
- Connect a wireless accessory
- Add and manage printers
- Connect AirPods to your Mac
- Optimize your Mac battery life
- Optimize storage space
- Burn CDs and DVDs
- Control accessories in your home
- Get started
- Shut down or restart your Mac
- Start up your Mac in safe mode
- Keep your Mac up to date
- Reinstall macOS
- Erase your Mac
Resources for your Mac
- Control what you share
- Set up your Mac to be secure
- Allow apps to see the location of your Mac
- Use private browsing
- Keep your data safe
- Understand passwords
- Change weak or compromised passwords
- Protect email privacy in Mail
- Use Sign in with Apple for apps and websites
- Find a missing device
Copyright and trademarks
Resources for your Apple devices

Use Time Machine on your Mac to back up to multiple disks

For extra security and convenience, you can back up to multiple disks. If you work in two locations, you may want to keep backup disks in both places.

Time Machine rotates the backup schedule among the disks. For each disk, Time Machine backs up everything that’s changed since the last time that disk was used. If you designated items that shouldn’t be backed up, the list of excluded items applies to all backup disks.

If you use multiple backup disks, you can see timelines for all disks or for an individual disk.

To see a timeline for all backup disks: Click in the menu bar, then choose “Browse Time Machine backups.”

To see the timeline for a specific backup disk: Click in the menu bar, press the Option key, then choose Browse Other Backup Disks.

If the Time Machine icon isn’t in the menu bar, choose Apple menu > System Settings. Click Control Center in the sidebar, scroll down to Time Machine , then select “Show in Menu Bar” from the pop-up menu.

See alsoChoose a backup disk and set encryption options on Mac

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