Sounds unique to Eastern European languages were once written with two letter combination called "digraphs." In ''De Ortographia Bohemica'' (1412), Jan Hus proposed the use of diacritics in place of digraphs. Eight-bit character encoding, introduced in the 1980s, allows dozens of characters with diacritics to be rendered on computer and transmitted electronically. Unicode was incorporated into Windows in 2000. It allows for an almost unlimited character set.
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Sounds unique to Eastern European languages were once written with two letter combination called "digraphs." In ''De Ortographia Bohemica'' (1412), Jan Hus proposed the use of diacritics in place of digraphs. Eight-bit character encoding, introduced in the 1980s, allows dozens of characters with diacritics to be rendered on computer and transmitted electronically. [[Unicode]] was incorporated into Windows in 2000. It allows for an almost unlimited character set.