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A remarkably interesting question lurking in there.....

To keep it short, it is neither, the motherboard is the centre, the hub, and all the input and output devices must be connected to it. The other devices only become input / output devices because the motherboard (which contains the CPU) either reads data from them or sends data to them.

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Charley Lowe

Lvl 10
3y ago

What else can I help you with?