Be familiar with a few words
cylinder: cylinder is a cylinder formed by a plurality of the same disc track a logical
sector: minimum unit of data stored on a disk sector, sector 1 512Byte =
Heads: heads, heads represent a total of how many disk
track: of tracks = number of cylinders
1.MBR
(1) Maximum capacity: 32 bits to store the number of sectors, can handle a maximum size of 2T
(2) the number of partitions: up to four primary partitions, but may have a plurality of logical partitions
(3) partition type: support extended primary logical all three partition
(4) 0 0 track sectors: the first 446 bytes is used to start, 64 bytes hold the partition table, the last two bytes mean the end position 55aa
(5) partition table backup: do they backup
(6) motherboard support startup type: BIOS
2.GPT
(1) Maximum Capacity: 64 bits to store sector numbers, the maximum processing capacity of 8Z
(2) the number of partitions: up to 128
(3) partition type: Only primary partition
(4) partition backup: Automatic Backup
(5) support motherboard startup type: BIOS or "UEFI (main)"