I also specifically worded it as "note that" to preempt this comment about the slight ambiguity, but I guess that didn't really help... But in any case, I thin

I also specifically worded it as "note that" to preempt this comment about the slight ambiguity, but I guess that didn't really help... But in any case, I think the component you want to refer to in that case it the "I/O subsystem".