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一、简介 EQDBMS是由“北京地区强震观测台网”数据处理中心发展的地震记录数据库管理系统。该系统由FORTRAN77程序设计语言编写,充分运用了该语言的文件组织形式和字符编辑的功能,数据库采用层状数据模型并与数据处理中心的联机数据处理系统连接进行实时处理。EQDBMS适用于缺少数据库管理软件(可选项系统软件)而且磁盘容量较小的小型或微型电子计算机。在内存为128K字节、外部磁盘容量为10兆字节的计算机上均可运行。
I. Introduction EQDBMS is an earthquake record database management system developed by the Beijing Earthquake Observatory Network Data Processing Center. The system is written by FORTRAN77 programming language and fully utilizes the file organization form and character editing function of the language. The database uses layered data model and connects with the on-line data processing system of data processing center for real-time processing. EQDBMS is for small or tiny computers that lack database management software (optional system software) and have a small disk capacity. Works on computers with 128K bytes of internal memory and 10 megabytes of external disk.