A tiny BIOS chip lurks inside every computer, sitting on your motherboard to breathe life into your system when you press the power button. It not only powers your PC, but helps protect it, too—as Duo Security’s recent report on Apple macOS attacks points out  BIOS stands for basic input and output system, and the BIOS chip initializes all the other devices in your PC, like the CPU, GPU, and motherboard chipset.

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