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  2. Disk partitioning - Wikipedia

    en.wikipedia.org/wiki/Disk_partitioning

    As of the mid-2010s, most new computers use the GUID Partition Table (GPT) partitioning scheme instead. For examples of other partitioning schemes, see the general article on partition tables . The total data storage space of a PC HDD on which MBR partitioning is implemented can contain at most four primary partitions , or alternatively three ...

  3. Partition type - Wikipedia

    en.wikipedia.org/wiki/Partition_type

    The partition type (or partition ID) in a partition's entry in the partition table inside a master boot record (MBR) is a byte value intended to specify the file system the partition contains or to flag special access methods used to access these partitions (e.g. special CHS mappings, LBA access, logical mapped geometries, special driver access, hidden partitions, secured or encrypted file ...

  4. GUID Partition Table - Wikipedia

    en.wikipedia.org/wiki/GUID_Partition_Table

    Like MBR, GPT uses logical block addressing (LBA) in place of the historical cylinder-head-sector (CHS) addressing. The protective MBR is stored at LBA 0, and the GPT header is in LBA 1, with a backup GPT header stored at the final LBA. The GPT header has a pointer to the partition table (Partition Entry Array), which is typically at LBA 2 ...

  5. BIOS boot partition - Wikipedia

    en.wikipedia.org/wiki/BIOS_Boot_partition

    Due to the 1 MiB partition alignment policies used by most modern disk partitioning tools to provide optimum performance with Advanced Format disks, SSD devices and certain RAID configurations, some room is left allowing the placement of a BIOS boot partition between the GPT and the first partition aligned that way (34–2047 for 512-byte ...

  6. Boot sector - Wikipedia

    en.wikipedia.org/wiki/Boot_sector

    The MBR sector may contain code to locate the active partition and invoke its volume boot record. A volume boot record (VBR) is the first sector of a data storage device that has not been partitioned, or the first sector of an individual partition on a data storage device that has been partitioned.

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