The Xerox Character Code Standard (XCCS) is a historical 16-bit character encoding that was created by Xerox[1] in 1980 for the exchange of information between elements of the Xerox Network Systems Architecture.
[2] It encodes the characters required for languages using the Latin, Arabic, Hebrew, Greek and Cyrillic scripts, the Chinese, Japanese and Korean writing systems, and technical symbols.
[3] It can be viewed as an early precursor of, and inspiration for, the Unicode Standard.
[4][1] The International Character Set (ICS) is compatible with XCCS.
[5] The XCCS 2.0 (1990) revision covers Latin, Arabic, Hebrew, Gothic, Armenian, Runic, Georgian, Greek, Cyrillic, Hiragana, Katakana, Bopomofo scripts, technical, and mathematical symbols.