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)