Mac Inside & Out · Course 5
macOS Under the Hood
See how your Mac works inside, and keep its deepest parts safe.
- 1How macOS Is Built9 min · Meet the Unix roots, the kernel, app bundles and Library folders.
- 2Privacy Prompts and Permissions10 min · Decide which apps may see your screen, files or control your Mac.
- 3Terminal Basics on a Mac10 min · Open Terminal, try a few safe commands, and never paste a stranger's.
- 4Apple Silicon and the Secure Enclave10 min · Learn what Apple's own chips do and how Touch ID keeps your print safe.
- 5Challenge: A Faster Mac for Aunt Joan11 min · Help your aunt when a helpful looking site tells her to use Terminal.
Hands-on
Do it on the practice computer
Lessons have labs you can try in your browser, plus questions that earn points toward the Mac Insider badge.
Start lesson 1