Re: [請益] USB電風扇 →USB孔形狀?
我想借題發揮另一個問題,
為什麼USB沒有防呆?
我知道插反插不進去,
可是外觀上根本無法清楚辨認哪邊是哪邊,
相信大家都有插反的經驗,而且至少就我來說是經常...
連早期沒有USB,插孔不需被頻繁抽插的年代,
都懂得做出插入角度的辨識特徵,
RGB線就是典型的梯型,
滑鼠/鍵盤線也算一目暸然,
IEEE1394不管六針還是四針都分別設計成凸型或凹型以供確認,
現在的HDMI也是皿字型,
它們外觀上都絕對不會造成上下左右搞錯插反的狀況.
何以USB這種更是隨插即用要經常進進出出的東西,反而捨棄插入角度的辨識特徵?
特殊形狀會比較不耐用嗎?
我就不信整天插錯在那裡摳摳摳使用壽命會比較長...
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