UPS (uninterruptible power supply) is a device used to provide a backup power source to a computer or other electronic equipment. It provides power to the device when the main power supply fails or is interrupted. It typically consists of a battery, an inverter, and a control unit. The battery provides power to the equipment when the main power supply fails, and the inverter converts the battery's DC power to AC. The control unit monitors the power supply and switches the system to the battery in the event of a power failure.
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