Question: Assuming you have a 9 - pin COM port on your PC or laptop ( and it is not connected to anything, nor is it

Assuming you have a 9-pin COM port on your PC or laptop (and it is not connected to anything, nor is it sending any data):
a) Are you looking at a DTE or the DCE?
b) On which pin would you find TxD and what voltage would you expect?
c) On which pin would you find RxD and what voltage would you expect?
d) Which pin is the ground pin

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