Type of os being used , such as windows , unix , linux 将要使用的操作系统的类型,如windows 、 unix和linux
Determine which client operating system types are to be supported 确定要支持的客户端操作系统的类型。
Each partition table entry typically includes the starting and ending sectors of a partition and the kind of operating system that handles it 每一个分区表入口包括分区的起始位置和处理他的操作系统的类型。