5.1 系统初始化的特点1.系统初始化是装入全电话局操作软件的机制,它的装入源是磁盘.(1)系统初始化使相应的通用装入段、数据装入段和最后的修改文件全部装入控制单元.(2)电话局开始系统初始化之前,必须先做磁盘形成工作,因为磁盘形成已把磁带上的系统装入磁带的全部通用装入段、数 5.1 System Initialization Features 1. System initialization is the mechanism for loading the PSTN operating software and its loading source is disk. (1) The system initialization makes the corresponding general loading section, data loading section and final modification file All loaded into the control unit. (2) Before the telephone exchange starts system initialization, the disk formation work must be done because the disk forms all the universal loading sections into which the system on the tape has been loaded