A [[Universally Unique Identifier]] ([[UUID]]) is a 128-bit number used to uniquely identify information in computer systems. It is typically represented as a string of hexadecimal digits separated by hyphens. UUIDs are generated using algorithms that ensure their uniqueness across different systems and time periods, making them suitable for various purposes such as identifying network devices, database records, or software components. UUIDs are designed to be globally unique, meaning the probability of generating two identical UUIDs is extremely low.