用位示图管理磁盘空间的分配与回收 要求打印或显示程序运行前和运行后的位示图，以及分配和回收磁盘的物理地址过程。-Management with the bit map display of disk space allocation and recycling requirements of the print or display program to run before and after running the bit map display, and distribution an

希捷硬盘固化程序工厂详细分类，属于硬盘本身操作系统，包含rom文件以及工厂固化数据-Seagate hard disk curing process factory detailed classification, belongs to the hard disk operating system itself, curing and factory data contains a ROM file