苹果机《友好》汉化dBASEⅡ的设计和实现要点

The Design and Implementation of a“Friendship”Chinese dBASE Ⅱ on Apple Ⅱ

本系统的目的在于为广大非计算机专为人员的用户提供一个性能价格比高、亲善性好的汉化大众化数据库管理工具.在实现上技巧地应用128k 卡,可将 Apple Ⅱ plus 机的内存“虚拟”地扩展到192k 以上,实现了 CP/M 的造字功能.

This newly implemented system aims to provide the public users a high performance/cost and friendly Chinese DBMS. In implementation,Apple Ⅱ plus′s internal memory can be expanded virtually to over 192K by technically efficient use of 64K card or 128K card. The system implements the function of making Chinese characters under CP/M for the first time.