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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. Power-on self-test - Wikipedia

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

    No beep: Power supply, system board problem, disconnected CPU, or disconnected speaker Continuous beep: Power supply, system board, RAM or keyboard problem Repeating short beeps: Power supply, system board or keyboard problem 1 long, 1 short beep: System board problem 1 long, 2 short beeps: Display adapter problem (MDA, CGA) 1 long, 3 short beeps

  4. 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.

  5. Help:Keyboard shortcuts - Wikipedia

    en.wikipedia.org/wiki/Help:Keyboard_shortcuts

    Mozilla Firefox 1.5 on Windows: hold Alt, press access key; Mozilla Firefox before version 14 on Mac OS X: hold Control, press access key; Safari 3 or earlier on Mac OS X: hold Control, press access key; Camino : hold Control, press access key; Opera 12 and lower: press and release ⇧ Shift+Esc, then press access key

  6. Shift key - Wikipedia

    en.wikipedia.org/wiki/Shift_key

    The Shift key on an English Windows keyboard (above the left "Ctrl" key) The Shift keyShift is a modifier key on a keyboard, used to type capital letters and other alternate "upper" characters. There are typically two Shift keys, on the left and right sides of the row below the home row.

  7. Macintosh startup - Wikipedia

    en.wikipedia.org/wiki/Macintosh_startup

    A Happy Mac is the normal bootup (startup) icon of an Apple Macintosh computer running older versions of the Mac operating system. It was designed by Susan Kare in the 1980s, drawing inspiration from the design of the Compact Macintosh series and from the Batman character Two-Face . [ 10 ]

  8. Restart the computer and close programs on Mac - AOL Help

    help.aol.com/articles/restart-the-computer-and...

    Note: Wait for 20 seconds, and then turn on the computer. 2. On the keyboard, hold down the Command and Option keys, and then tap the esc key. In the Force Quit Applications window, click any program other than Finder to highlight it, and then click Force Quit. 3.

  9. Reset (computing) - Wikipedia

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

    Generally, a hard reset is initiated by pressing a dedicated reset button On some systems (e.g, the PlayStation 2 video game console), pressing and releasing the power button initiates a hard reset, and holding the button turns the system off.