MSComm 控件通过串行端口(serial port)传送和接收数据,为应用程序提供了串行通讯功能。而且在可视化编程盛行的今天，可以很方便的在Visual B...

移动通信基本知识:从通信网的角度看，移动网可以看成是有线通信网的延伸，它由无线和有线两部分组成。无线部分提供用户终端的接入，利用有限的频率资源在空中可靠地传送话音和数据；有线部分完成网络功能，包括交换、用户管理、漫游、鉴权等，构成公众陆地移动通信网PLMN。从陆地移动通信的具体实现形式来分主要有模拟移动通信和数字移动通信这两部种。-Basic knowledge of mobile communications: From the perspective of communication networks, mobile networks can be seen as an extension of wired communication network, which is both wireless and wired components. Part of user terminals to provide wireless access, frequency of use of limited resources in the air and reliable transmission of voice and data wired part of the completion of network functions, including switching, subscriber management, roaming, authentication and so on, constitute a public land mobile communication network PLMN. From land-based mobile communications to the specific forms of the main points have analog and digital mobile communications that two kinds of mobile communication.

提供一个Socket封装接口,支持多线程及业务回调功能.-provide a package Socket interface, and supports multi-threaded business callback function.

Jitter is extremely important in systems using PLL-based clock drivers. The effects of jitter range from not having any effect on system operation to rendering the system completely non-functional. This application note provides the reader with a clear understanding of jitter in high-speed systems. It introduces the reader to various kinds of jitter in high-speed systems, their causes and their effects, and methods of reducing jitter. This application note will concentrate on jitter in PLL-based frequency synthesizers.

一个电力系统方面的LFP通讯规约文档。包含了遥测遥信遥控方面通讯的帧格式-the LFP communications Statute documents. Includes remote telemetry remote area communications frame format

这是一篇有关利用DDE技术进行VB和组态王软件通信的文章，作者侯广宁,隋涛,孔震,孙凡超,张鑫（山东科技大学）。该文介绍了windows 平台上DDE(动态数据交换)技术的基本原理，研究了工控组态软件组态王与可视化编程软件VB 对DDE 技术的支持和应用，通过实例，编写了组态王与VB 应用程序的数据交换程序。运行结果表明，该监控系统能稳定和可靠地完成现场的实时监控。

qt实现的 商品管理系统 可用于管理公司物品进出及价格~附部分实现文件源码：#include "client.h"#include "ui_client.h"#include #include Client::Client(QWidget *parent) : QDialog(parent), ui( 请点击左侧文件开始预览 ！预览只提供20%的代码片段，完整代码需下载后查看 加载中 侵权举报

数据通信讲义，培训教程-data communications lectures, training guide

ultrawidebad file is there

使用FAX Modem发送传真的程序 -Send fax

为什么需要XP,敏捷过程是软工发展的必然及最新成果,xp重要概念,12个重要惯例和规则,XP的实施过程.-Why do we need XP, agile process is soft for the inevitable development and the latest results, xp important concepts, 12 important practices and rules and regulations, XP in the process.