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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. 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

  4. Comparison of hex editors - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_hex_editors

    Disk sector editing Process memory editing Data inspector Bit editing Insert/delete bytes Character encodings Search Unicode File formats Disassembler File compare Find in files Bookmarks Macro Text editor; HxD: 8 EiB [5] Yes Windows 9x/NT and up Yes Yes Yes Yes ANSI, ASCII, OEM, EBCDIC, Macintosh Yes No Individual instructions only Yes No Yes ...

  5. Data Integrity Field - Wikipedia

    en.wikipedia.org/wiki/Data_Integrity_Field

    DIF included extending the disk sector from its traditional 512 bytes, to 520 bytes, by adding eight additional protection bytes. [1] This extended sector is defined for Small Computer System Interface (SCSI) devices, which is in turn used in many enterprise storage technologies, such as Fibre Channel . [ 3 ]

  6. File system - Wikipedia

    en.wikipedia.org/wiki/File_system

    Windows makes use of the FAT, NTFS, exFAT, Live File System and ReFS file systems (the last of these is only supported and usable in Windows Server 2012, Windows Server 2016, Windows 8, Windows 8.1, and Windows 10; Windows cannot boot from it). Windows uses a drive letter abstraction at the user level to distinguish one disk or partition from ...

  7. 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 ...

  8. Drive letter assignment - Wikipedia

    en.wikipedia.org/wiki/Drive_letter_assignment

    Applying the scheme discussed above on a fairly modern Windows-based system typically results in the following drive letter assignments: A: — Floppy disk drives, 3 + 1 ⁄ 2 ″ or 5 + 1 ⁄ 4 ″, and possibly other types of disk drives, if present. B: — Reserved for a second floppy drive (that was present on many PCs). C: — First hard ...

  9. Floppy disk format - Wikipedia

    en.wikipedia.org/wiki/Floppy_disk_format

    In hard-sectored 8-inch and 5 + 1 ⁄ 4-inch formats, each track is divided into a particular number of sectors determined when the disk is manufactured. Holes are punched in the magnetic media to indicate where each sector should start (in an area closer to the center of the disk than is used for magnetic recording).