The ADC 7 and {TAIL ~ the FIFO} 8, together with {HEAD ~ the associated logic}, are on an industry standard bus circuit board installed in an IBM AT/PC compatible computer 9 
The ADC 7 and { TAIL ~ the FIFO } 8 , together with { HEAD ~ the associated logic } , are on an industry standard bus circuit board installed in an IBM AT / PC compatible computer 9
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH