{TAIL ~ The output} from the computer may be displayed in real time in various monitors 28, then also may be {HEAD ~ output} to a permanent record 30 
{ TAIL ~ The output } from the computer may be displayed in real time in various monitors 28 , then also may be { HEAD ~ output } to a permanent record 30
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH