In particular, the invention relates to {HEAD ~ data storage devices} that are subject to {TAIL ~ free fall} or other changes in acceleration, for example, storage devices used in portable computers, cameras, onboard vehicular computers, and similar electronic devices 
In particular , the invention relates to { HEAD ~ data storage devices } that are subject to { TAIL ~ free fall } or other changes in acceleration , for example , storage devices used in portable computers , cameras , onboard vehicular computers , and similar electronic devices
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH