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USB連接器

編輯：管理員瀏覽：1590 時(shí)間：2017-06-25

USB 即“Universal Serial Bus ”，中文名稱為通用串行總線。這是近幾年逐步在PC 領(lǐng)域廣為應(yīng)用的新型接口技術(shù)。USB接口具有傳輸速度更快，支持熱插拔以及連接多個(gè)設(shè)備的特點(diǎn)。目前已經(jīng)在各類外部設(shè)備中廣泛的被采用。目前USB接口有三種：USB1.1和USB2.0，以及近年來(lái)出現(xiàn)的usb3.0。理論上USB1.1的傳輸速度可以達(dá)到12Mbps/秒，而USB2.0則可以達(dá)到速度480Mbps/秒，并且可以向下兼容USB1.1。
隨著計(jì)算機(jī)硬件飛速發(fā)展，外圍設(shè)備日益增多，鍵盤、鼠標(biāo)、調(diào)制解調(diào)器、打印機(jī)、掃描儀早已為人所共知，數(shù)碼相機(jī)、MP3隨身聽(tīng)接踵而至，這么多的設(shè)備，如何接入個(gè)人計(jì)算機(jī)？USB就是基于這個(gè)目的產(chǎn)生的。

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