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