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这是一个C++编程文档-This is a C Programming Document

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VB做的测绘仪器通讯程序！ 设置通讯参数一定要和仪器里的一致！-VB mapping equipment to do the communication process. Set up communications parameters must apparatus and the same!

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考勤专家》安装软件包括以下两个文件： 1、Tr520.exe 2、Tr520.w02 压缩包中文件kq.mdb是一个测试数据库文件，安装完成并且完成第一次运行后， 用该文件替换掉安装目录下的 TimeRecordermdbkq.mdb 文件即可。 系统安装后附有使用说明书和帮助文件。-appraisal experts "install the software include the following two documents : one, two Tr520.exe. Tr520.w02 compression package kq.mdb document is a test database files, completed the installation and completion of the first run, with the document replace installed in the directory TimeRecorder mdb kq.mdb document can be . System installation with the use of manual and help files.

TCP/IP测试工具，很好用的，对于嵌入式开发的工程师来说是很好的工具；-TCP/IP testing tools, good used for embedded development engineers is a good tool

从表面上看，保护模式和实模式并没有太大的区别，二者都使用了内存段、中断和设备驱动来处理硬件，但二者有很多不同之处。我们知道，在实模式中内存被划分成段，每个段的大小为64KB，而这样的段地址可以用16位来表示。内存段的处理是通过和段寄存器相关联的内部机制来处理的，这些段寄存器（CS、DS、 SS和ES）的内容形成了物理地址的一部分。具体来说，最终的物理地址是由16位的段地址和16位的段内偏移地址组成的。用公式表示为：物理地址=左移4位的段地址+偏移地址。-On the surface, protected mode and real mode is not much difference between the two are the use of the memory, Drivers interruption and equipment to deal with the hardware, but there are many differences. We know that in real mode which has been divided into memory, each the size of 64 KB. and the addresses of 16 can be used to express. Memory of the handling of the adoption and register linked to the internal mechanisms to deal with, of these registers (CS, DS, SS and ES) with the formation of a part of the physical address. Specifically, the ultimate physical address is 16 of the 16 addresses and the addresses of migration within the composition. The use of the formula is expressed as : physical address = 4 bits of the address offset address.