Universal Multiple-Octet Coded Character Set (UCS)

UCS stands for Universal Multiple-Octet Coded Character Set, which is specified by ISO/IEC 10646. This coded character set is applicable to the representation, transmission, interchange, processing, storage, input and presentation of the written form of all major languages (scripts) of the world as well as additional symbols.

General Structure of UCS
UCS-2
UCS-4