Electronic device 500 can be realized by {HEAD ~ a number} of {TAIL ~ separate physical units} or it can also be realized as a “system on chip” 
of
Electronic device 500 can be realized by { HEAD ~ a number } of { TAIL ~ separate physical units } or it can also be realized as a “ system on chip ”
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH