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3 Cards in this Set
- Front
- Back
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Identify each of the processes that start up in a Mac OS X computer at System startup, and the order in which they launch.
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1. Firmware: The mac's hardware initializes and the booter is located and started.
2. Booter: The booter loads the system kernel and essential hardware drivers, known as kernel extensions (KEXTS) into main memory and then allow the kernel to take over the system. 3. Kernel: Provides the system's foundation and loads additional drivers and the core BSD UNIX system. 4. System Launchd: Once the core OS is loaded, it starts the first process, the system launchd, which is responsible for loading the remainder of the system. |
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Map visual and audible cues to the stages of the Mac OS X startup sequence
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Firmware: Audible startup chime, birght flash from power light, and all displays show a light gray background.
Booter: Dark gray Apple logo on main display Kernel: Dark gray spinning gear. System Launchd: Bright blue background on all displays. |
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Describe the role of the BootROM
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Resides on flash memory chips built into the Mac's main computer board. It tests and initializes the hardware, and then locates and starts the system software booter.
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