A system for managing power consumption of a computer by communicating power management events to {HEAD ~ a removable device} of {TAIL ~ the computer} 
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A system for managing power consumption of a computer by communicating power management events to { HEAD ~ a removable device } of { TAIL ~ the computer }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL