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  2. Disk partitioning - Wikipedia

    en.wikipedia.org/wiki/Disk_partitioning

    The terms partition table and partition map are similar terms and can be used interchangeably. The term is most commonly associated with the MBR partition table of a Master Boot Record (MBR) in PCs , but it may be used generically to refer to other formats that divide a disk drive into partitions, such as: GUID Partition Table (GPT), Apple ...

  3. GUID Partition Table - Wikipedia

    en.wikipedia.org/wiki/GUID_Partition_Table

    For hard disks with 512‑byte sectors, the MBR partition table entries allow a maximum size of 2 TiB (2³² × 512‑bytes) or 2.20 TB (2.20 × 10¹² bytes). [1] In the late 1990s, Intel developed a new partition table format as part of what eventually became the Unified Extensible Firmware Interface (UEFI). The GUID Partition Table is ...

  4. Memory management (operating systems) - Wikipedia

    en.wikipedia.org/wiki/Memory_management...

    Paged allocation divides the computer's primary memory into fixed-size units called page frames, and the program's virtual address space into pages of the same size. The hardware memory management unit maps pages to frames. The physical memory can be allocated on a page basis while the address space appears contiguous.

  5. Disk sector - Wikipedia

    en.wikipedia.org/wiki/Disk_sector

    A cluster is the smallest logical amount of disk space that can be allocated to hold a file. Storing small files on a filesystem with large clusters will therefore waste disk space; such wasted disk space is called slack space. For cluster sizes which are small versus the average file size, the wasted space per file will be statistically about ...

  6. Logical volume management - Wikipedia

    en.wikipedia.org/wiki/Logical_volume_management

    A hybrid volume is any volume that intentionally and opaquely makes use of two separate physical volumes. For instance, a workload may consist of random seeks so an SSD may be used to permanently store frequently used or recently written data, while using higher-capacity rotational magnetic media for long-term storage of rarely needed data.

  7. Master boot record - Wikipedia

    en.wikipedia.org/wiki/Master_boot_record

    Since partitioning information is stored in the MBR partition table using a beginning block address and a length, it may in theory be possible to define partitions in such a way that the allocated space for a disk with 512-byte sectors gives a total size approaching 4 TiB, if all but one partition are located below the 2 TiB limit and the last ...

  8. Microsoft Reserved Partition - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Reserved_Partition

    Microsoft reserves a chunk of disk space using this MSR partition type, to provide an alternative data storage space for such software components which previously may have used hidden sectors on MBR formatted disks. Small, special-purpose partitions can be allocated from a portion of the space reserved in the MSR partition. [1]

  9. Extended boot record - Wikipedia

    en.wikipedia.org/wiki/Extended_boot_record

    Since non-LBA-enabled versions of DR-DOS up to including 7.03 do not recognize the 0x0F partition type and other operating systems do not recognize the 0xC5 type, this can also be utilized to occupy space up to the first 8 GB of the disk for use under DR-DOS (for logical drives in secured or non-secured partitions), and still use 0x0F to ...