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  2. Power-on self-test - Wikipedia

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

    Macs made after 1987 but prior to 1998, upon failing the POST, will immediately halt with a "death chime", which is a sound that varies by model; it can be a simple beep, a car crash sound, the sound of shattering glass, a short musical tone, or more. On the screen, if working, will be the Sad Mac icon, along with two hexadecimal strings, which ...

  3. 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.

  4. PC speaker - Wikipedia

    en.wikipedia.org/wiki/PC_speaker

    Programming the PC Speaker, by Mark Feldman for PC-GPE. Programming the PC Speaker, by Phil Inch: part 1, part 2 (includes a very detailed explanation of how to play back PCM audio on the PC speaker, and why it works) Bleeper Music Maker A freeware to use the PC speaker to make music (superseded by BaWaMI) Beep for Linux and Windows, by Frank ...

  5. Beep, beep (sound) - Wikipedia

    en.wikipedia.org/wiki/Beep,_beep_(sound)

    Beep, beep" is onomatopoeia representing a noise, generally of a pair of identical tones following one after the other, often generated by a machine or device such as a car horn. It is commonly associated with the Road Runner (commonly interpreted as "meep meep") in Looney Tunes cartoons featuring the speedy-yet- flightless bird and his ...

  6. Beep - Wikipedia

    en.wikipedia.org/wiki/Beep

    Beep (sound), a single tone onomatopoeia, generally made by a computer or a machine BEEP, a network protocol framework; Beep (locomotive), a locomotive built in 1970 Beep (smart card), contact less card payment scheme in the Philippines initially intended for use in railway stations and some buses.

  7. Check engine light - Wikipedia

    en.wikipedia.org/wiki/Check_engine_light

    The lamp will turn off once the car is started if no monitored faults exist. The MIL will also illuminate if the engine has been cranked but failed to start after returning the ignition to "on". In most modern vehicles this is usually due to not giving the engine enough cranking time to start.

  8. Keyboard technology - Wikipedia

    en.wikipedia.org/wiki/Keyboard_technology

    A common test for whether the computer has crashed is pressing the "caps lock" key. The keyboard sends the key code to the keyboard driver running in the main computer; if the main computer is operating, it commands the light to turn on. All the other indicator lights work in a similar way.

  9. Booting process of Windows - Wikipedia

    en.wikipedia.org/wiki/Booting_process_of_Windows

    When a user is logging on to Windows, the startup sound is played, the shell (usually EXPLORER.EXE) is loaded from the [boot] section of the SYSTEM.INI file, and startup items are loaded. In all versions of Windows 9x except ME, it is also possible to load Windows by booting to a DOS prompt and typing "win".