When a computer is switched on, it begins the booting process, and the first task performed is the Power-On Self-Test (POST). This test is carried out by the BIOS (Basic Input/Output System) or UEFI firmware to verify that the computer's... Read More
When a computer is switched on, it begins the booting process, and the first task performed is the Power-On Self-Test (POST). This test is carried out by the BIOS (Basic Input/Output System) or UEFI firmware to verify that the computer's essential hardware components are working properly. Therefore, Option B (Power-On Self-Test) is the correct answer.
During POST, the system checks important hardware components such as the CPU, RAM, keyboard, storage devices, graphics hardware, and other connected peripherals. If all hardware passes the test successfully, the BIOS locates a bootable storage device and starts loading the operating system into memory. If a hardware problem is detected, the system may display an error message or produce a series of beep codes to indicate the fault.
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