Uninterruptible Power Supply
<hardware> (UPS) A battery powered power supply that is guaranteed to
provide power to a computer in the event of interruptions in the incoming
electrical power. Different rating UPSs will provide power for different lengths
of time.
Modern UPSs connect to the computer's serial port and provide information such
as battery time remaining, allowing the computer to shut down gracefully before
complete loss of power.
(1996-12-11)
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