Describe the computer booting process.

Describe the computer booting process.

1. The internal power supply turns on and initializes.
2. The BIOS performs the power-on self test (POST).  If there are any fatal errors, the boot process stops
3. The BIOS the looks for other devices’ ROMS to see if any of them have BIOSEs.  Normally, the IDE/Ata hard disk BIOs will be found and executed.  If any other device BIOSes are found, they are executed as well
4. The BIOS begins the search for a drive to boot from
5. Having identified its target boot drive, the BIOS looks for boot information to start the operating system boot process

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