Uninterruptible Power Supply


Uninterruptible Power Supply

(hardware)(UPS) A battery powered power supply unit that isguaranteed to provide power to a computer in the event ofinterruptions in the incoming mains electrical power.Different rating UPSs will provide power for different lengthsof time.

Modern UPSs connect to the computer's serial port andprovide information such as battery time remaining, allowingthe computer to shut down gracefully before complete loss ofpower.