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  2. Disk partitioning - Wikipedia

    en.wikipedia.org/wiki/Disk_partitioning

    The partition type is identified by a 1-byte code found in its partition table entry. Some of these codes (such as 0x05 and 0x0F ) may be used to indicate the presence of an extended partition . Most are used by an operating system's bootloader (that examines partition tables) to decide if a partition contains a file system that can be mounted ...

  3. Partition coefficient - Wikipedia

    en.wikipedia.org/wiki/Partition_coefficient

    A corresponding partition coefficient for ionizable compounds, abbreviated log P I, is derived for cases where there are dominant ionized forms of the molecule, such that one must consider partition of all forms, ionized and un-ionized, between the two phases (as well as the interaction of the two equilibria, partition and ionization).

  4. Partition of a set - Wikipedia

    en.wikipedia.org/wiki/Partition_of_a_set

    (Note: this is the partition, not a member of the partition.) For any non-empty set X, P = { X} is a partition of X, called the trivial partition. Particularly, every singleton set {x} has exactly one partition, namely { {x} }. For any non-empty proper subset A of a set U, the set A together with its complement form a partition of U, namely ...

  5. System partition and boot partition - Wikipedia

    en.wikipedia.org/wiki/System_partition_and_boot...

    The system partition is the disk partition that contains the operating system folder, known as the system root. By default, in Linux, operating system files are mounted at / (the root directory). In Linux, a single partition can be both a boot and a system partition if both /boot/ and the root directory are in the same partition.

  6. Disk sector - Wikipedia

    en.wikipedia.org/wiki/Disk_sector

    In computer file systems, a cluster (sometimes also called allocation unit or block) is a unit of disk space allocation for files and directories.To reduce the overhead of managing on-disk data structures, the filesystem does not allocate individual disk sectors by default, but contiguous groups of sectors, called clusters.

  7. GUID Partition Table - Wikipedia

    en.wikipedia.org/wiki/GUID_Partition_Table

    "Partition type GUID" means that each partition type is strictly identified by a GUID number unique to that type, and therefore partitions of the same type will all have the same "partition type GUID". Each partition also has a "partition unique GUID" as a separate entry, which as the name implies is a unique id for each partition.

  8. Group action - Wikipedia

    en.wikipedia.org/wiki/Group_action

    for all g and h in G and all x in X.. The group G is then said to act on X (from the left). A set X together with an action of G is called a (left) G-set.. It can be notationally convenient to curry the action α, so that, instead, one has a collection of transformations α g : X → X, with one transformation α g for each group element g ∈ G.

  9. Partition (database) - Wikipedia

    en.wikipedia.org/wiki/Partition_(database)

    A partition is a division of a logical database or its constituent elements into distinct independent parts. Database partitioning is normally done for manageability, performance or availability [ 1 ] reasons, or for load balancing .