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  2. Header check sequence - Wikipedia

    en.wikipedia.org/wiki/Header_Check_Sequence

    It may consist of a cyclic redundancy check (CRC) of the frame, obtained as the remainder of the division (modulo 2) by the generator polynomial multiplied by the content of the header excluding the HCS field. The HCS can be one octet long, as in WiMAX, or a 16-bit value for cable modems. See also. Checksum; References

  3. Hajdu–Cheney syndrome - Wikipedia

    en.wikipedia.org/wiki/Hajdu–Cheney_syndrome

    Hajdu–Cheney syndrome is a monogenic disorder. The disorder is inherited and controlled by a single pair of genes. A single copy of the mutant gene on an autosome causes HCS. HCS is an autosomal dominant disorder, only one parent with the defective gene is needed to pass the disorder to the offspring. [citation needed] Mutations within the ...

  4. Hierarchical control system - Wikipedia

    en.wikipedia.org/wiki/Hierarchical_control_system

    Hierarchical control system. A hierarchical control system ( HCS) is a form of control system in which a set of devices and governing software is arranged in a hierarchical tree. When the links in the tree are implemented by a computer network, then that hierarchical control system is also a form of networked control system .

  5. Hazard Communication Standard - Wikipedia

    en.wikipedia.org/wiki/Hazard_Communication_Standard

    The Hazard Communication Standard (HCS) requires employers to disclose toxic and hazardous substances in workplaces. This is related to the Worker Protection Standard . Specifically, this requires unrestricted employee access to the Material Safety Data Sheet (MSDS), Globally Harmonized System of Classification and Labeling of Chemicals (GHS ...

  6. Blue screen of death - Wikipedia

    en.wikipedia.org/wiki/Blue_screen_of_death

    Linux. systemd, a software suite providing system components for the Linux operating systems, implements a blue screen of death similar to those of Microsoft Windows using a systemd unit called systemd-bsod since August 2023, which was fully added on December 6, 2023 starting with version 255 of systemd.

  7. Hub-center steering - Wikipedia

    en.wikipedia.org/wiki/Hub-center_steering

    The hub-center steer concept is a very old one used as early as 1910 by the British James Cycle Co, and in 1920 by Ner-a-Car, and enjoyed an aftermarket vogue in the 1970s through the work of Jack Difazio in the UK. Mead & Tomkinson Racing pioneered the use of hub-center steering in long-distance motorcycle endurance racing.

  8. NonStop (server computers) - Wikipedia

    en.wikipedia.org/wiki/NonStop_(server_computers)

    NonStop OS is a message-based operating system designed for fault tolerance. It works with process pairs and ensures that backup processes on redundant CPUs take over in case of a process or CPU failure. Data integrity is maintained during those takeovers; no transactions or data are lost or corrupted.

  9. Machine-check exception - Wikipedia

    en.wikipedia.org/wiki/Machine-check_exception

    IBM System/360 Operating System records input/output errors in a dataset called SYS1 .LOGREC ... the system generates a BugCheck — also called a STOP error, ...