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引言最近几年来,随着整个计算机事业的发展,微型计算机也得到了迅速的发展。目前我国除了少量引进整套微型机系统进行研究、开发应用之外,绝大部分科研、教学、生产单位都是采用从国外引进的一些芯片,例如CPU、RAM、EPROM以及输入、输出的接口芯片,结合国产的一些元器件,组装成各种类型大、中、小系统的微型计算机广泛应用于科研、教学、生产单位,解决各种类型的控制和计算问题。有的采用从国外买进的现成单板机,进行存贮容量,外围接口的适当扩充,改造管理程序,增加用户程序,使之成为
Introduction In recent years, with the development of the entire computer industry, microcomputers have also been rapidly developed. At present, in addition to a small amount of introduction of a whole set of miniature computer systems in our country for research and development and application, most of the research, teaching and production units adopt some chips imported from abroad, such as CPU, RAM, EPROM and input / output interface chips, Combined with a number of domestic components, assembled into various types of large, medium and small systems of the microcomputer is widely used in scientific research, teaching, production units, to solve various types of control and calculation problems. Some use of ready-made single board machines purchased from abroad for storage capacity, the appropriate expansion of the external interface, transform management procedures, increase user procedures, making it