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  2. Power-on self-test - Wikipedia

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

    Steady, short beeps Power supply may be bad Long continuous beep tone Memory failure Steady, long beeps Power supply bad No beep Power supply bad, system not plugged in, or power not turned on No beep If everything seems to be functioning correctly there may be a problem with the 'beeper' itself. The system will normally beep one short beep.

  3. PC speaker - Wikipedia

    en.wikipedia.org/wiki/PC_speaker

    Beep for Linux and Windows, by Frank Buß. APIs for beeping. Commandline PC speaker program for Linux FTP; Practical article on implementing a Linux Kernel Driver; Timing on the PC family under DOS (Sections 7.5, 7.29, 7.30, and 10.7 – 10.7.4 in particular)

  4. Recovery disc - Wikipedia

    en.wikipedia.org/wiki/Recovery_disc

    A typical recovery disk for an Acer PC.. The terms Recovery disc (or Disk), Rescue Disk/Disc and Emergency Disk [1] all refer to a capability to boot from an external device, possibly a thumb drive, that includes a self-running operating system: the ability to be a boot disk/Disc that runs independent of an internal hard drive that may be failing, or for some other reason is not the operating ...

  5. Beep (sound) - Wikipedia

    en.wikipedia.org/wiki/Beep_(sound)

    A beep is a short, single tone, typically high-pitched, generally made by a computer or other machine. The term has its origin in onomatopoeia . The word "beep-beep" is recorded for the noise of a car horn in 1929, and the modern usage of "beep" for a high-pitched tone is attributed to Arthur C. Clarke in 1951.

  6. Break key - Wikipedia

    en.wikipedia.org/wiki/Break_key

    Break/Pause key on PC keyboard. The Break key (or the symbol ⎉) of a computer keyboard refers to breaking a telegraph circuit and originated with 19th century practice. In modern usage, the key has no well-defined purpose, but while this is the case, it can be used by software for miscellaneous tasks, such as to switch between multiple login sessions, to terminate a program, or to interrupt ...

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  8. What 'secret' loudspeaker codes mean at department stores - AOL

    www.aol.com/news/2010-10-13-what-secret...

    If you've been shopping in a big box retail store you've probably heard an announcement on the loudspeaker such as, "code yellow toys, code yellow toys."

  9. Menu key - Wikipedia

    en.wikipedia.org/wiki/Menu_key

    In computing, the menu key (≣ Menu), or application key, is a key with the primary function to launch a context menu with the keyboard rather than with the usual right-mouse button. [1] It was previously found on Microsoft Windows-oriented computer keyboards and was introduced at the same time as the Windows logo key.