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一 前言建立一个微型计算机应用系统,完成系统设计及性能论证以后,则可对硬件和软件的功能进行划分,以满足系统的性能/价格比要求,然后进行硬件和软件设计。微型计算机的软件设计与中小型机软件设计相比,主要特点是软件与硬件更加紧密结合,设计可同时进行,设计过程互相协调,并且可以互相取代;在成本分布方面,硬件所占的成本比例较低,而软件所占成本比例相对较高;微型计算机应用系统的程序规模比较小,专用性较强,一般多由用户自行设计;对于专用系统,且常常把程序固化在 ROM 或 EPROM 中,或作为文件驻在软盘中,便于调用,增强功能。
A foreword The establishment of a microcomputer application system, after completing the system design and performance demonstration, the hardware and software functions can be divided to meet the system’s performance / price ratio requirements, and then the hardware and software design. Microcomputer software design Compared with the design of small and medium-sized computer software, the main features are more closely integrated software and hardware, design can be carried out simultaneously, the design process of mutual coordination, and can replace each other; in terms of cost distribution, the proportion of the cost of hardware Lower, and the proportion of the cost of the software is relatively high; microcomputer application system program is relatively small, highly specialized, generally designed by the user more; for a dedicated system, and often the program is solidified in ROM or EPROM, Or as a file in a floppy disk for easy calling and enhanced functionality.