When the sensor senses a change in gravitational or inertial acceleration of said data processing system, it alerts system electronics to temporarily park {HEAD ~ a read/write head} in {TAIL ~ a safe position} 
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When the sensor senses a change in gravitational or inertial acceleration of said data processing system , it alerts system electronics to temporarily park { HEAD ~ a read / write head } in { TAIL ~ a safe position }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL