Thus, {TAIL ~ inadvertent actions} of a computer or other keyboard or keypad controlled device are not prompted by {HEAD ~ the pressing} of keys as the keyboard is cleaned 
Thus , { TAIL ~ inadvertent actions } of a computer or other keyboard or keypad controlled device are not prompted by { HEAD ~ the pressing } of keys as the keyboard is cleaned
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH