FIG 3 shows {HEAD ~ a cross sectional view} of an embodiment of {TAIL ~ the I/O device} 18 of the present invention 
FIG 3 shows { HEAD ~ a cross sectional view } of an embodiment of { TAIL ~ the I / O device } 18 of the present invention
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH