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  2. Memory leak - Wikipedia

    en.wikipedia.org/wiki/Memory_leak

    The following example, written in pseudocode, is intended to show how a memory leak can come about, and its effects, without needing any programming knowledge. The program in this case is part of some very simple software designed to control an elevator .

  3. File system fragmentation - Wikipedia

    en.wikipedia.org/wiki/File_system_fragmentation

    File segmentation, also called related-file fragmentation, or application-level (file) fragmentation, refers to the lack of locality of reference (within the storing medium) between related files. Unlike the previous two types of fragmentation, file scattering is a much more vague concept, as it heavily depends on the access pattern of specific ...

  4. Cyclic redundancy check - Wikipedia

    en.wikipedia.org/wiki/Cyclic_redundancy_check

    00000000001110 100 1011 00000000000101 100 101 1 ----- 00000000000000 000 <--- remainder The following Python code outlines a function which will return the initial CRC remainder for a chosen input and polynomial, with either 1 or 0 as the initial padding. Note that this code works with string inputs rather than raw numbers:

  5. SquashFS - Wikipedia

    en.wikipedia.org/wiki/SquashFS

    In 2009 Squashfs was merged into Linux mainline as part of Linux 2.6.29. [ 8 ] [ 9 ] In that process, the backward-compatibility code for older formats was removed. Since then the Squashfs kernel-space code has been maintained in the Linux mainline tree, while the user-space tools remain on the project's GitHub page.

  6. fsck - Wikipedia

    en.wikipedia.org/wiki/Fsck

    Partially recovered files where the original file name cannot be reconstructed are typically recovered to a "lost+found" directory that is stored at the root of the file system. A system administrator can also run fsck manually if they believe there is a problem with the file system. The file system is normally checked while unmounted, mounted ...

  7. Disk quota - Wikipedia

    en.wikipedia.org/wiki/Disk_quota

    A disk quota is a limit set by a system administrator that restricts certain aspects of file system usage on modern operating systems. The function of using disk quotas is to allocate limited disk space in a reasonable way.

  8. Self-modifying code - Wikipedia

    en.wikipedia.org/wiki/Self-modifying_code

    Filling 100% of memory (in some architectures) with a rolling pattern of repeating opcodes, to erase all programs and data, or to burn-in hardware or perform RAM tests. [12] Compressing code to be decompressed and executed at runtime, e.g., when memory or disk space is limited. [10] [11]

  9. Boot sector - Wikipedia

    en.wikipedia.org/wiki/Boot_sector

    When GRUB is installed on a hard disk, boot.img is written into the boot sector of that hard disk. boot.img has a size of only 446 bytes. A boot sector is the sector of a persistent data storage device (e.g., hard disk , floppy disk , optical disc , etc.) which contains machine code to be loaded into random-access memory (RAM) and then executed ...