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Old 05-25-2011, 04:06 AM   #1
alinas0968
 
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Default 硬盘的并口跟串口是什么意思

  A.并口和串口是硬盘传输数据的方式,并口有8位、16位、32位、64位等,monster beats by dr. dre studio。就是一次可传输8、16、32、64位等的数据。毛病是:数据线宽,underwear armani,彼此间干扰大。串口是按位(bit)发送和接收字节。只管比按字节(byte)的并行通讯慢,但是串口可 以在使用一根线发送数据的同时用另一根线吸收数据。它很简略并且可能实现远间隔通信。
  B.什么叫串口硬盘?为了进步硬盘速度多少大硬盘厂商独特制订了Serial ATA接口(串行ATA)。这种技术极大地简化了接口的针脚数量,只用四个针就实现了所有的工作。串行AT A工作的时候,第1针发出数据、第2针接受数据、第3针向硬盘供电、第4针为地线。和咱们的习惯性思维带来 的主意相反,这种串行接口技巧将供给比并行接口技术并口硬盘采取的是一根四芯的电源线和一根80芯的数据线 与主板相衔接,串口硬盘分离采用了一根如USB插头那样细的电源   线跟数据线与主板相连。 其传输数据的方法不同,分辨为把数据并列传输和成列(串)传输。串口形容一下就是一条很宽的车道;而并口就 是有8个车道,统一时刻能传递8位(一个字节)数据,chastitybelts。然而并不是并口快,因为8位通道之间的相互干扰,传输速度就受到了限度,而且当传输犯错时,要同时从新传 8个位的数据。串口不会发生烦扰,传输出错后重发一位就能够了。当初最快的并口硬盘的传输速率是 133MB/S,prada glasses,而串口硬盘最慢的也能到达150MB/S。   另外要阐明的是,并口硬盘是不需要安装驱动,假如是串口硬盘,不必英特尔的芯片组的话,还须要装置串行 装备的驱动才干畸形应用。 更高的传输速率,还将同时下降电力耗费,减小发烧量。
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