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Uninterruptible Power Supply Definition: An Uninterruptible Power Supply (UPS) is a device that provides emergency power to a system when the main power source fails, ensuring continuous operation and preventing data loss or damage.
An Uninterruptible Power Supply (UPS) is a device that provides emergency power to a load when the input power source or mains power fails. It acts as a backup power source to prevent data loss, equipment damage, and downtime during power outages by instantly supplying power from its internal battery. UPS units not only ensure continuous operation of critical systems but also protect them from power surges, spikes, and fluctuations that could compromise their performance or longevity.