(Universally Unique ID) A unique number generated for any purpose, but that cannot be accidentally duplicated by another party and wind up in conflict later on. The UUID is a 128-bit number that is so large that it is infinite for all intents and purposes; however, there are different algorithms used to create it. The original algorithm uses the MAC address of the Ethernet adapter in the machine and the time of day. Subsequent versions use similar and dissimilar methods for computing the number. See GUID and OID.
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