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  2. System Idle Process - Wikipedia

    en.wikipedia.org/wiki/System_Idle_Process

    In Windows NT operating systems, the System Idle Process contains one or more kernel threads which run when no other runnable thread can be scheduled on a CPU. In a multiprocessor system, there is one idle thread associated with each CPU core. For a system with hyperthreading enabled, there is an idle thread for each logical processor.

  3. Power supply unit (computer) - Wikipedia

    en.wikipedia.org/wiki/Power_supply_unit_(computer)

    When high-powered GPUs were first introduced, typical ATX power supplies were "5 V-heavy", and could only supply 50–60% of their output in the form of 12 V power. Thus, GPU manufacturers, to ensure 200–250 W of 12 V power (peak load, CPU+GPU), recommended power supplies of 500–600 W or higher.

  4. Human microphone - Wikipedia

    en.wikipedia.org/wiki/Human_microphone

    A crowd of protesters engaging in the "human microphone" on 30 September 2011, at Occupy Wall Street. A human microphone, also known as the people's microphone, is a means for delivering a speech to a large group of people, wherein persons gathered around the speaker repeat what the speaker says, thus "amplifying" the voice of the speaker without the need for amplification equipment.

  5. High availability - Wikipedia

    en.wikipedia.org/wiki/High_availability

    For example, electricity that is delivered without interruptions (blackouts, brownouts or surges) 99.999% of the time would have 5 nines reliability, or class five. [10] In particular, the term is used in connection with mainframes [ 11 ] [ 12 ] or enterprise computing, often as part of a service-level agreement .

  6. Operating system - Wikipedia

    en.wikipedia.org/wiki/Operating_system

    There are three main purposes that an operating system fulfills: [10] Operating systems allocate resources between different applications, deciding when they will receive central processing unit (CPU) time or space in memory. [10] On modern personal computers, users often want to run several applications at once.

  7. CAPTCHA - Wikipedia

    en.wikipedia.org/wiki/Captcha

    This CAPTCHA (reCAPTCHA v1) of "smwm" obscures its message from computer interpretation by twisting the letters and adding a slight background color gradient.A CAPTCHA (/ ˈ k æ p. tʃ ə / KAP-chə) is a type of challenge–response test used in computing to determine whether the user is human in order to deter bot attacks and spam.

  8. Program optimization - Wikipedia

    en.wikipedia.org/wiki/Program_optimization

    Rewriting sections "pays off" in these circumstances because of a general "rule of thumb" known as the 90/10 law, which states that 90% of the time is spent in 10% of the code, and only 10% of the time in the remaining 90% of the code. So, putting intellectual effort into optimizing just a small part of the program can have a huge effect on the ...

  9. Google Chrome - Wikipedia

    en.wikipedia.org/wiki/Google_Chrome

    Support for Google Chrome on Windows 7 was supposed to end upon the announcement on July 15, 2021, [259] and suddenly moved to January 15, 2022, however due to the ongoing COVID-19 pandemic and enterprises took more time to migrate to Windows 10 or 11, the end of support date was pushed at least until January 15, 2023. [260]