= Macintosh startup
{wiki=Macintosh_startup}
Macintosh startup refers to the process that occurs when a Mac computer is powered on or restarted. This process involves several steps and is crucial for initializing the hardware and loading the operating system. Here’s a breakdown of what happens during the startup process: 1. **Power-On Self-Test (POST)**: When you turn on the Mac, the firmware performs a POST to check the hardware components such as memory, storage, and peripherals for any issues.
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