引导扇区定义：
A boot sector is a physical sector, or section, on a hard drive that includes information about how to start the boot process in order to load an operating system.
引导扇区是硬盘上的物理扇区或部分，包含如何启动引导过程以加载操作系统的信息。
主引导扇区位于整个硬盘的0磁头0柱面1扇区，包括硬盘主引导记录MBR（Master Boot Record）和分区表DPT（Disk Partition Table）。
硬盘主引导记录定义：
A master boot record (often shortened as MBR) is a kind of boot sector stored on a hard disk drive or other storage device that contains the necessary computer code to start the boot process.
解释：硬盘主引导记录是硬盘驱动器或者其他西湖村设备上的引导扇区的一种。它包括着电脑启动过程中必须的代码。
分区表：
Disk partitioning or disk slicing is the creation of one or more regions on a hard disk or other secondary storage, so that an operating system can manage information in each region separately.These regions are called partitions or volumes. It is typically the first step of preparing a newly manufactured disk, before any files or directories have been created. The disk stores the information about the partitions' locations and sizes in an area known as the partition table that the operating system reads before any other part of the disk. Each partition, or volume, then appears in the operating system as a distinct "logical" disk that uses part of the actual disk. System administrators use a program called a partition editor to create, resize, delete, and manipulate the partitions.When a hard drive is installed in a computer, it must be partitioned before you can format and use it.