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  2. Avionics Full-Duplex Switched Ethernet - Wikipedia

    en.wikipedia.org/wiki/Avionics_Full-Duplex...

    AFDX adopted concepts such as the token bucket from the telecom standards, Asynchronous Transfer Mode (ATM), to fix the shortcomings of IEEE 802.3 Ethernet. By adding key elements from ATM to those already found in Ethernet, and constraining the specification of various options, a highly reliable full-duplex deterministic network is created providing guaranteed bandwidth and quality of service ...

  3. DO-178C - Wikipedia

    en.wikipedia.org/wiki/DO-178C

    DO-178C, Software Considerations in Airborne Systems and Equipment Certification is the primary document by which the certification authorities such as FAA, EASA and Transport Canada approve all commercial software-based aerospace systems.

  4. PikeOS - Wikipedia

    en.wikipedia.org/wiki/PikeOS

    PikeOS is a commercial hard real-time operating system (RTOS) which has a separation kernel-based hypervisor that supports multiple logical partition types for various operating systems (OS) and applications, each referred to as a GuestOS.

  5. MIM-104 Patriot - Wikipedia

    en.wikipedia.org/wiki/MIM-104_Patriot

    The MIM-104 Patriot is a mobile interceptor missile surface-to-air missile (SAM) system, the primary such system used by the United States Army and several allied states. It is manufactured by the U.S. defense contractor Raytheon and derives its name from the radar component of the weapon system.

  6. DO-254 - Wikipedia

    en.wikipedia.org/wiki/DO-254

    The hardware requirement validation process provides assurance that the hardware item derived requirements are correct and complete with respect to system requirements allocated to the hardware item. Validation of hardware requirements allocated from system requirements is a system process, rather than a hardware process. As such, hardware ...

  7. Worst-case execution time - Wikipedia

    en.wikipedia.org/wiki/Worst-case_execution_time

    One component that makes up the response time is the time spent executing the software – hence if the software worst case execution time can be determined, then the designer of the system can use this with other techniques such as schedulability analysis to ensure that the system responds fast enough.

  8. CAST-32A - Wikipedia

    en.wikipedia.org/wiki/CAST-32A

    CAST-32A, Multi-core Processors is a position paper, [1] by the Certification Authorities Software Team (CAST). It is not official guidance, but is considered informational by certification authorities such as the FAA and EASA.

  9. List of United States rapid transit systems - Wikipedia

    en.wikipedia.org/wiki/List_of_United_States...

    System Transit agency City/area served Annual ridership, 2023 [1] Avg. ridership weekdays, Q3 2024 [2] System length Avg. boardings per mile weekdays, Q3 2024 Opened Stations Lines 1 New York City Subway: NYCTA [note 1] New York City: 2,027,286,000 5,955,000 248 mi (399 km) [3] 24,012 1904 [4] 472 [4] 26 [4] 2 Washington Metro: WMATA ...