应用VC++6.0开发的，利用max7221与计算机并口驱动8位数码管的程序。-VC 6.0 application development, the use of parallel computer max7221 with eight digital drive control procedures.

根据硬件序列号生成注册号,生成的注册码可以按字母颠倒、按顺序互换、数字交换、序列号分离和变形，最终形成正式的注册码,这样尽量保证了注册好的唯一,没有重复，并且有安全，可以放心使用.-generation hardware serial number registered, the license can be generated by the letters upside down, according to the order reversed, and digital switching,

声卡示波器程源代码,基于个人电脑的示波器带有触发功能，带有数字存储示波器的常见功能。-sound card oscilloscope Yuan Cheng code on the PC oscilloscope with a trigger function, Digital storage oscilloscope with a common function.

stc89c5a16s2单片机的ad模数转换，使用扫描法，可同时转换8路模拟信号-stc89c5a16s2 ad microcontroller analog-digital conversion, using the scanning method, which can convert 8 analog signals

Labview编程实现并口显示一个八位的数码管控制-Labview programming parallel port displays a 8 digital control