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  2. Power-on self-test - Wikipedia

    en.wikipedia.org/wiki/Power-on_self-test

    This design by IBM was modeled after their larger mainframe systems, which would perform a complete hardware test as part of their cold-start process. As the PC platform evolved into more of a commodity consumer device, the mainframe and minicomputer-inspired high-reliability features such as parity memory and the thorough memory test in every ...

  3. Blue screen of death - Wikipedia

    en.wikipedia.org/wiki/Blue_screen_of_death

    systemd, a software suite providing system components for Linux operating systems, implements a blue screen of death similar to that 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. [38]

  4. Machine-check exception - Wikipedia

    en.wikipedia.org/wiki/Machine-check_exception

    In some cases, the CPU will shut itself off once passing a thermal limit to avoid permanent damage. But they can also be caused by bus errors introduced by other failing components, like memory or I/O devices. Possible causes include: Poor CPU cooling due to a CPU heatsink and case fans (or filters) that's clogged with dust or has come loose.

  5. Machine Check Architecture - Wikipedia

    en.wikipedia.org/wiki/Machine_check_architecture

    In computing, Machine Check Architecture (MCA) is an Intel and AMD mechanism in which the CPU reports hardware errors to the operating system.. Intel's P6 and Pentium 4 family processors, AMD's K7 and K8 family processors, as well as the Itanium architecture implement a machine check architecture that provides a mechanism for detecting and reporting hardware (machine) errors, such as: system ...

  6. Booting - Wikipedia

    en.wikipedia.org/wiki/Booting

    After it is switched on, a computer's central processing unit (CPU) has no software in its main memory, so some process must load software into memory before it can be executed. This may be done by hardware or firmware in the CPU, or by a separate processor in the computer system. On some systems a power-on reset (POR) does not initiate booting ...

  7. Macintosh startup - Wikipedia

    en.wikipedia.org/wiki/Macintosh_startup

    Initially, this revised startup chime was only included on Intel-based Macs with a T2 security chip, with most of the other models at the time (including older ones) still having the previous one. Eventually, the new startup chime was brought over to all older supported Macs starting with the macOS Big Sur 11.0.1 beta.

  8. Reset (computing) - Wikipedia

    en.wikipedia.org/wiki/Reset_(computing)

    The CPU uses the values of CS and IP registers to find the location of the next instruction to execute. Location of next instruction is calculated using this simple equation: Location of next instruction = (CS<<4) + (IP) This implies that after the hardware reset, the CPU will start execution at the physical address 0xFFFF0.

  9. Task Manager (Windows) - Wikipedia

    en.wikipedia.org/wiki/Task_Manager_(Windows)

    Task Manager, previously known as Windows Task Manager, is a task manager, system monitor, and startup manager included with Microsoft Windows systems. It provides information about computer performance and running software, including names of running processes, CPU and GPU load, commit charge, I/O details, logged-in users, and Windows services.