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The first step in the booting process is POST (power-on self-test).
Power On Self Test
Self (Power-On Self Test)
Power on self test in electronics equipment or computers is done to validate if all the critical parts of the device are working as desired when it is turned on. Any thing wrong internally or on an interface is typically reported as a failure on power on self test. What all is tested depends on how elaborately the power on self test has been designed. - Neeraj Sharma
Power on self test
Power-on self-test
yes
Power On Self-Test
For most computers this is signaled by a single "beep" after the self test.
The 7 steps of booting process in a computer are: Power On BIOS POST (Power-On Self-Test) Bootloader Execution Operating System Loading Kernel Initialization System Initialization User Login.
POST = Power On Self Test Kind of a dead giveaway...
When you turn on the computer, it usually will perform the Power On Self Test, or POST.