🌐한국어EnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTürkçeРусскийالعربيةفارسی한국어中文日本語EntityQ275472· pop 38· linked from 339 articles포스Also known as FORTHprogramming languageKey factsParadigmconcatenative ( stack-based ), procedural , reflectiveDesigned byCharles H. MooreFirst appeared1970 ; 56 years ago ( 1970 )Typing disciplineTypelessFilename extensions.fs, .fth, .4th, .f, .forthWebsiteforth-standard .orgvia Wikipedia infoboxWikidata factsOfficial websiteforth-standard.orgSources (2)wikidata.orglingualibre.frvia Wikidata · CC0Available in 35 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةBelarusianConnectionsmachine codeEntitybootloaderEntityCategories1970 softwareConcatenative programming languagesExtensible syntax programming languagesForth programming language familyProgramming languagesProgramming languages created in 1970Programming languages with an ISO standardStack-based virtual machinesSystems programming languages