CompTIA A+ 220-701: 1.2 – BIOS and CMOS

We rely on the BIOS to test our computer and start our operating systems, but what is really happening under the surface? In this module, you’ll learn about the BIOS works and we’ll demonstrate the basics of starting and configuring BIOS settings.

Why did the POST fail?

The power on self-test (POST) process performs a number of hardware tests when the computer powers up. Which of the following faulty components would cause the POST to fail?