A replacement standard for character sets such as ANSI, which work with code pages to support multiple languages.  A Unicode standard has space for more than 256 characters. The 16-bit Unicode standard is capable of encoding the characters of the world's major language scripts. Version 3.0 contains 49,194 characters and 8,515 code points for private uses and future expansions. Special 32-bit combinations can reach a million characters.  Unicode is supported on all the major computer operating systems, as well as by HTML 4.0, XML, and X-HTML. The most common Unicode character set is UTF-8.