Everyone has heard of UPS at least once or twice in their life. It is a device that could be found in most homes, attached to computer systems, but now, with advancements in technology and people preferring laptops over computer systems due to their portability, UPS has become a device that is limited to offices and other places where battery backup is required for electrical devices. Have you ever wondered how exactly this small block-like device work? If you have, then this article has the answer for you.
