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by CobrastanJorji 809 days ago
Lots. It's basically an extra processor that runs at all times, even when your computer is supposedly "off." Its firmware is bigger than you'd think, like a complete Unix system big. It's frankly terrifying how powerful and opaque it is. It provides a lot around remote management for corporations, lots of "update the BIOS remotely" sort of features, and also a bunch of those stupid copy protection enforcement things. Plus some startup/shutdown stuff like Secure Boot.