The Universal Character Set coded in 2 octets, as specified by the ISO-10646 Standard. UCS-2 is a two-byte fixed width subset of UTF-16. See Appendix C, "Relationship to ISO/IEC 10646," in the Unicode Standard.
An ISO/IEC 10646 encoding form, Universal Character Set coded in 2 octets. The Tivoli Storage Manager client on Windows NT and Windows 2000 uses the UCS-2 code page when the client is enabled for Unicode.
the original "Unicode" encoding on Microsoft Windows, limited to code points up to U+FFFF
Fixed-width 16-bit Unicode. Each character occupies 16 bits of storage. The Latin-1 characters are the first 256 code points in this standard, so it can be viewed as a 16-bit extension of Latin-1.
A 1993 ISO/IEC standard character set. It is a fixed-width, 16-bit Unicode character set. Each character occupies 16 bits of storage. The ISO Latin1 characters are the first 256 code points, so it can be viewed as a 16-bit extension of ISO Latin1.
UCS stands for "Universal Multiple-Octet Coded Character Set". It is a 1993 ISO and IEC standard character set.