What Does Uninterruptible Power Supply (UPS) Mean?

An uninterruptible power supply (UPS) is an enhanced battery system that will self-activate in the event of a power disruption and function as the primary power source until electronic devices can safely be shut down or an emergency generator takes over.

Techopedia Explains Uninterruptible Power Supply (UPS)

Uninterruptable power sources provide mechanical and digital machines with interim power in a broad range of industries, including manufacturing, information technology, transportation and healthcare.