微机磁卡系统在食堂管理中的应用

Computer Magnetic-Card System Used in Dinning-Room Manager

本文从研究网络结构及通讯方式入手，从实践及理论两方面论证在微机磁卡系统中采用树形网结构及多电源供电的必要性。

Computer network structure and means of signals communicationare firstly studied in this paper. And then , from both sides of thoery and practice,expound and prove that taking tree-shape network structure and multipower supply are necessary in computer magnetic-card system.