Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: Charles Sanders Peirce (a lokacin 1880 <unk> 81) ya nuna cewa ƙofofin NOR kadai (ko madadin ƙofofin NAND kadai) za a iya amfani da su don sake samar da ayyukan duk sauran ƙofofin dabaru, amma aikinsa a kai ba a buga shi ba har zuwa 1933. Henry M. Sheffer ne ya fara buga hujja a 1913, don haka ana kiran aikin NAND mai ma'ana wani lokacin bugun Sheffer; NOR mai ma'ana wani lokacin ana kiranta da kibiya ta Peirce. Sakamakon haka, ana kiran waɗannan ƙofofi a wasu lokuta ƙofofin dabaru na duniya.  Tambaya: Menene sunan da ya fi dacewa ga waɗannan ƙofofi?
ƙofofin dabaru na duniya