Apple Training Series Mac OS X Support Essentials [Electronic resources] نسخه متنی

What do one beep, two beeps, three beeps, four beeps, and five beeps at startup signify?

List the possible scenarios that may occur during the BootX sequence.

Describe what happens during the Kernel Load stage.

What is the major difference between a startup item and a launchd item?

State three tasks that loginwindow performs after a user has logged in.

Identify the six visual or auditory cues that are displayed during the Mac OS X boot process.

One beep: no RAM installed; two beeps: incompatible RAM types; three beeps: no good memory banks; four beeps: no good boot images in BootROM; five beeps: processor is not usable.

Kernel found

System not found

Network boot

No startup disk found

Loads device drivers, initializes I/O Kit, loads and starts launchd.

Startup items are always started during the startup process whether they will be used or not. A launchd item ideally is only launched when needed.

Loads the user's computing environment; launches the Dock, Finder, and SystemUIServer; and automatically launches applications specified in the Login Items pane of Accounts preferences.

Black screen, start-up chime, gray screen, gray screen with Apple logo and spinning gear, blue screen, login window.