PIC16F877单片机使用外部中断最简单的演示程序，适合PIC单片机初学者使用。...

GSM通信流程 介绍了GSM网络在通信中不同情况下的信令流程-GSM communication processes introduced in the GSM network in the communication under different circumstances of the signaling processes

This java code examle shows the http connection and communication and data sending via GPRS application on phone.-This java code examle shows the http connection and communication and data sending via GPRS application on phone.

一个ppp协议实现--A ppp protocol realization

三种模拟调制与解调的算法，三种模拟调制为：AM，FM，SSB-Three types of analog modulation and demodulation algorithms, three types of analog modulation for: AM, FM, SSB

中文RFC文件，无需翻译，对学习很有帮助！

symbian 游戏开发.经典的参考例子.适用于初学者.-symbian game development. classic reference examples. applicable to beginners.

基于CSerialPort类，增加了RecvBlock方法，一次性读取多个字节，并且改进了无法正常退出的bug。原说明：This class can read, write and watch one serial port.It sends messages to its owner when something happends on the portThe class creates a thread for reading and writing so the mainprogram is not blocked.

卷积码译码器,采用sova算法译码-Convolutional Decoder, decoding algorithm used SOVA

vb写得传真服务器软件，只能在2000下面运行。-vb writes fax server software, only can move under 2000.

巴特沃斯滤波器代码的C语言实现。适合初学者了解IIR滤波器的涉及原理及使用-Butterworth filter code, C language. IIR filter is suitable for beginners to understand and use involving the principle