Emoji is the Japanese term for the picture characters, pictograph or emoticons. Originally they were used in Japanese electronic messages and webpages. The word literally means e “picture” + moji “letter”.
For NTT DoCoMo’s i-mode, each emoji symbol is drawn on a 12×12 pixel grid.
Hundreds of Emoji characters were encoded in the Unicode Standard in version 6.0 released in October 2010 (and in the related international standard ISO/IEC 10646). The additions, originally requested by Google (Kat Momoi, Mark Davis, and Markus Scherer wrote the first draft for consideration by the Unicode Technical Committee in August 2007) and Apple Inc. (whose Yasuo Kida and Peter Edberg joined the first official UTC proposal for 607 characters as coauthors in January 2009), went through a long series of commenting by members of the Unicode Consortium and national standardization bodies of various countries participating in ISO/IEC JTC1/SC2/WG2, especially the United States, Germany, Ireland (led by Michael Everson), and Japan; various new characters (especially symbols for maps and European signs) were added during the consensus-building process.
Emoji Safari Extension This safari extension converts emoji characters to iPhone emoji icons.