IOCP presents an efficient solution to the "one-thread-per-client" bottleneck problem (among others), using only a few processing threads and asynchronous input/output send/receive.
IOCP提供了一个有效的解决办法“一个线程每客户”的瓶颈问题（等等） ，只用少数的处理线程和异步输入/输出传送/接收。
Transformation between 5v logical and RS-232 Many micro-controllers have asynchronous serial ports, but their input and output rather to use 5v logic than to RS-232 voltage.
在5V逻辑和RS- 232之间转换很多微控制器有异步串口，但是它们的输出和输入使用5 V逻辑而不是使用RS - 232电压。
Transformation between 5v logical and RS-232 Many micro-controllers have asynchronous serial ports, but their input and output rather to use 5v logic than to RS-232 voltage.
在5V逻辑和RS- 232之间转换很多微控制器有异步串口，但是它们的输出和输入使用5 V逻辑而不是使用RS - 232电压。
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