QAM 16 源代码，用于无线通信中或者广播中的调制。-QAM 16 source code, used in wireless communication or broadcasting.

用keilC51编写的C语言源代码，用于单片机控制蜂鸣器的音乐播放，使用者可以更改代码来实现不同的声音播放。-KeilC51 with written language C source code, used for single-chip microcomputer control of the music played buzzer, users can change the code to the realization of different voice broadcasting.