Duba zuwa sashi na ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda sashi: Passage: An fara haɓaka a cikin 1970s, fiber-optics sun kawo sauyi a masana'antar sadarwa kuma sun taka muhimmiyar rawa a zuwan Zamanin Bayanai. Saboda fa'idodi a kan watsa wutar lantarki, fiber na gani sun maye gurbin hanyoyin sadarwa na jan ƙarfe a cikin cibiyoyin sadarwa a cikin ƙasashe masu tasowa. Tambaya: Menene nau'in juyin juya hali na kayan aiki wanda ya canza masana'antar sadarwa?
fiber-na gani