partition table(On a hard disk, the data structure that stores the offset (location) and size of each primary partition on the disk. On MBR disks, the partition table is located in the master boot record. On GPT disks, the partition table is located in the GUID partition entry array)
GUID partition table(A disk-partitioning scheme that is used by the Extensible Firmware Interface (EFI). GPT offers more advantages than master boot record (MBR) partitioning because it allows up to 128 partitions per disk, provides support for volumes up to 18 exabytes in size, allows primary and backup partition tables for redundancy, and supports unique disk and partition IDs (GUIDs))
