How does the operating system know the hardware info?
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Solved by Mira Yurizaki,
5 minutes ago, OlympicAssEater said:I am curious to know how the operating system able to know the hardware info like how does it recognize that I upgrade my cpu from 2700x to 3700x? Does it get the hardware info through the bios?
The CPU has specific instructions called, appropriately enough, CPUID. Various other peripherals and devices have similar mechanism where if you ping them with a certain instruction, it spits out something regarding the hardware that's connected.
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