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  2. Disk sector - Wikipedia

    en.wikipedia.org/wiki/Disk_sector

    Thus, the disk sector (Figure 1, item C) refers to the intersection of a track and geometrical sector. In modern disk drives, each physical sector is made up of two basic parts, the sector header area (typically called "ID") and the data area. The sector header contains information used by the drive and controller; this information includes ...

  3. Cylinder-head-sector - Wikipedia

    en.wikipedia.org/wiki/Cylinder-head-sector

    Cylinder, head, and sector of a hard drive. Cylinder-head-sector (CHS) is an early method for giving addresses to each physical block of data on a hard disk drive. It is a 3D-coordinate system made out of a vertical coordinate head, a horizontal (or radial) coordinate cylinder, and an angular coordinate sector. Head selects a circular surface ...

  4. GUID Partition Table - Wikipedia

    en.wikipedia.org/wiki/GUID_Partition_Table

    This amounts to a maximum reported size of 2 TiB, assuming a disk with 512 bytes per sector (see 512e). It would result in 16 TiB with 4 KiB sectors ( 4Kn ), but since many older operating systems and tools are hard coded for a sector size of 512 bytes or are limited to 32-bit calculations, exceeding the 2 TiB limit could cause compatibility ...

  5. Logical block addressing - Wikipedia

    en.wikipedia.org/wiki/Logical_block_addressing

    In logical block addressing, only one number is used to address data, and each linear base address describes a single block. The LBA scheme replaces earlier schemes which exposed the physical details of the storage device to the software of the operating system. Chief among these was the cylinder-head-sector (CHS) scheme, where blocks were addressed by means

  6. Disk editor - Wikipedia

    en.wikipedia.org/wiki/Disk_editor

    A disk editor is a computer program that allows its user to read, edit, and write raw data (at character or hexadecimal, byte-levels) on disk drives (e.g., hard disks, USB flash disks or removable media such as a floppy disks); as such, they are sometimes called sector editors, since the read/write routines built into the electronics of most ...

  7. Extended boot record - Wikipedia

    en.wikipedia.org/wiki/Extended_boot_record

    Number of sectors = total count of sectors for next logical partition, but count starts from the next EBR sector Note: Unlike the first entry in an EBR's partition table, this number of sectors count includes the next logical partition's EBR sector along with the other sectors in its otherwise unused track .

  8. Device configuration overlay - Wikipedia

    en.wikipedia.org/wiki/Device_configuration_overlay

    HDAT2 a free software program for MS-DOS. It can be used to create/remove Host Protected Area (HPA) (using command SET MAX) and create/remove DCO hidden area (using command DCO MODIFY). It also can do other functions on the DCO. Data Synergy's freeware ATATool utility can be used to detect a DCO from a Windows environment. Recent versions allow ...

  9. Master boot record - Wikipedia

    en.wikipedia.org/wiki/Master_boot_record

    Unless Windows is forced to use the overlapping part of the LBA address of the Advanced Active Partition entry as pseudo-disk signature, Windows' usage is conflictive with the Advanced Active Partition feature of PTS-DOS 7 and DR-DOS 7.07, in particular if their boot code is located outside the first 8 GB of the disk, so that LBA addressing ...