计算机微机原理与接口实验，实验内容是熟悉8253定时/计数器的使用，包括0、1、2、3方式这四种工作方式的源程序，用汇编语言实现，在ASM里运行成功。-Computer Theory and computer interface experiment, is familiar with the 8253 timer / counter use, 0,1,2,3 means including four methods of work of the source, assembly language, the ASM for running successfully.