Device
A physical or virtual unit that has three sets of registers- Data registers , control registers and status registers and that the processor addresses these like a memory.
or
A unit that connects to the processing unit through the ports. It has fixed pre-assigned port address(device addresses) according to its interfacing circuit.
A physical or virtual unit that has three sets of registers- Data registers , control registers and status registers and that the processor addresses these like a memory.
or
A unit that connects to the processing unit through the ports. It has fixed pre-assigned port address(device addresses) according to its interfacing circuit.
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