🌐EnglishEnglishРусскийفارسی中文日本語EntityQ4911818· pop 5· linked from 21 articlesbilliard-ball computeridealized model of a reversible mechanical computerWikidata factsImageToffoli BilliardBall-en.svgvia Wikidata · CC0Available in 5 languages日本語РусскийUkrainianفارسیvia Wikidata sitelinks · CC0ConnectionsInternational Standard Book NumberEntitydigital object identifierEntityCategoriesMechanical computersModels of computationReversible computing