为了提高微机原理实验和微机应用系统设计的水平 ,达到直接在X86系统微机上进行接口电路设计和微机应用系统设计 ,又不损坏X86系统微机的目的 ,我们设计了X86系统微机实验接口卡。该接口卡不仅为微机原理实验和微机应用系统设计提供了可靠的硬件环境 ,也为微机开发应用方面的科研创建了良好的硬件调试环境。 In order to improve the level of computer theory experiment and computer application system design and achieve the purpose of designing the interface circuit and computer application system directly on the X86 system microcomputer without damaging the X86 system microcomputer, we designed the X86 system computer experiment interface card. The interface card not only provides a reliable hardware environment for the design of microcomputer principle experiment and computer application system, but also creates a good hardware debugging environment for the scientific research of microcomputer development and application.