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USB 3.0规范协议-(完整版)

消耗积分:0 | 格式:rar | 大小:3355 | 2009-04-12

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The original motivation for the Universal Serial Bus (USB) came from several considerations, two of the most important being:
• Ease-of-use
The lack of flexibility in reconfiguring the PC had been acknowledged as the Achilles’ heel to
its further deployment. The combination of user-friendly graphical interfaces and the hardware
and software mechanisms associated with new-generation bus architectures have made
computers less confrontational and easier to reconfigure. However, from the end user’s point
of view, the PC’s I/O interfaces, such as serial/parallel ports, keyboard/mouse/joystick
interfaces, etc., did not have the attributes of plug-and-play.


 

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