Abstract: The new Arabic and extended Arabic font model and associated input/output method of this invention eliminate glyph changes in an Arabetic word processed by computerized systems before users terminate words employing logic stored in a utilized font system. The new method basically introduces different logic within fonts for selecting glyphs to display. Utilizing current smart font technology and Unicode standards with current, or slightly modified, text generation engines, the new font based method is suitable for any font model consisting of two to four glyphs per letter or more including required ligatures. The new method does not require today's commonly used, Arabic specific, Open Type routines, “init”, “medi”, “fina”, or “isol”. The principle goal of this invention is to improve word processing and learning of Arabic and extended Arabic scripts and to establish a more economical, cost effective, Arabetic computing and typography environment.