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  2. Table of keyboard shortcuts - Wikipedia

    en.wikipedia.org/wiki/Table_of_keyboard_shortcuts

    Allow user to press shortcuts one key at a time: ⇧ Shift press 5 times: ⇧ Shift 5 times [28] Hear beep when -lock key pressed: Numlock hold 5 seconds: Stop/slow repeating characters when key is pressed: Right Shift hold 8 seconds: ⇧ Shift hold for 8 seconds [29] [30] [31] Inverse (Reverse Colors) Mode Left Alt+Left Shift+PrtScn: ⌘ Cmd+ ...

  3. System request - Wikipedia

    en.wikipedia.org/wiki/System_request

    A 104-key PC US English keyboard layout with System request circled. System Request (SysRq or Sys Req) is a key on personal computer keyboards that has no standard use. Introduced by IBM with the PC/AT, it was intended to be available as a special key to directly invoke low-level operating system functions with no possibility of conflicting with any existing software.

  4. Shift key - Wikipedia

    en.wikipedia.org/wiki/Shift_key

    Press Alt+⇧ Shift+Tab ↹: Displays a list of the tasks in the task bar for as long as the Alt is held down. Selects the last task in the list. Continue to cycle through the list by pressingShift+Tab ↹. Release Alt to open the selected task. 3.1+ Press Ctrl+⇧ Shift+Tab ↹

  5. Keyboard shortcut - Wikipedia

    en.wikipedia.org/wiki/Keyboard_shortcut

    In computing, a keyboard shortcut (also hotkey/hot key or key binding) [1] is a software-based assignment of an action to one or more keys on a computer keyboard. Most operating systems and applications come with a default set of keyboard shortcuts , some of which may be modified by the user in the settings .

  6. 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.

  7. Help:Keyboard shortcuts - Wikipedia

    en.wikipedia.org/wiki/Help:Keyboard_shortcuts

    An access key allows a computer user to immediately jump to a specific part of a web page via the keyboard. On Wikipedia, access keys allow you to do a lot more—protect a page, show page history, publish your changes, show preview text, and so on.

  8. FilterKeys - Wikipedia

    en.wikipedia.org/wiki/FilterKeys

    FilterKeys (or Filter Keys) is an accessibility feature of Microsoft Windows.It configures the keyboard to ignore brief or repeated keystrokes, making typing easier for people with hand tremors, who may accidentally press keys multiple times.

  9. Buzzer - Wikipedia

    en.wikipedia.org/wiki/Buzzer

    Sounds commonly used to indicate that a button has been pressed are a click, a ring or a beep. Interior of a readymade loudspeaker, showing a piezoelectric-disk-beeper (With 3 electrodes ... including 1 feedback-electrode ( the central, small electrode joined with red wire in this photo), and an oscillator to self-drive the buzzer.