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  2. Table of keyboard shortcuts - Wikipedia

    en.wikipedia.org/wiki/Table_of_keyboard_shortcuts

    In computing, a keyboard shortcut is a sequence or combination of keystrokes on a computer keyboard which invokes commands in software.. Most keyboard shortcuts require the user to press a single key or a sequence of keys one after the other.

  3. List of built-in macOS apps - Wikipedia

    en.wikipedia.org/wiki/List_of_built-in_macOS_apps

    [44] [45] Activity Monitor appeared in Mac OS X v10.3, when it subsumed the functionality of the programs Process Viewer (a task manager) and CPU Monitor found in the previous version of OS X. [46] [47] In OS X 10.9, Activity Monitor was significantly revamped and gained a fifth tab for "energy" (in addition to CPU, memory, disk, and network).

  4. Device Manager - Wikipedia

    en.wikipedia.org/wiki/Device_Manager

    Windows cannot run the driver for this device because a previous instance of the driver exists. 39: Windows cannot load the driver for this device. The driver may be corrupted or missing. 40: Windows cannot access this hardware because its service key information in the registry is missing or corrupted. 41: Windows successfully loaded the ...

  5. Screenshot - Wikipedia

    en.wikipedia.org/wiki/Screenshot

    A screenshot (also known as screen capture or screen grab) is a digital image that shows the contents of a computer display. A screenshot is created by the operating system or software running on the device powering the display.

  6. Print Screen - Wikipedia

    en.wikipedia.org/wiki/Print_Screen

    A 104-key PC US English keyboard layout with Print Scrn circled. Print Screen (often abbreviated Print Scrn, Prnt Scrn, Prnt Scr, Prt Scrn, Prt Scn, Prt Scr, Prt Sc, Pr Sc, or PS) is a key present on most PC keyboards. It is typically situated in the same section as the break key and scroll lock key. The print screen may share the same key as ...

  7. Power-on self-test - Wikipedia

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

    On the screen, if working, will be the Sad Mac icon, along with two hexadecimal strings, which can be used to identify the problem. Some Macs made around this time do not use a death chime like Macs made prior to 1987, but retained the same format as those that used the death chimes, such as the presence of the Sad Mac icon and two hexadecimal ...

  8. Overview of the updated AOL app experience for Android

    help.aol.com/articles/Overview-of-the-updated...

    Tap the Profile icon in the upper-left.; Tap Settings.; Scroll down | tap Signatures.; Tap the toggle next to Include signature in new messages and enter your signature.; To customize a signature for each account, tap Customize for each account and select the account to enter your signature.

  9. Hardware overlay - Wikipedia

    en.wikipedia.org/wiki/Hardware_overlay

    As a consequence of hardware overlay use, a screenshot program (for example, the one automatically built into Windows that activates when a user presses the PrtSc key) often does not capture the content appearing in the hardware overlay window. Rather, a blank region containing only the special mask color is captured.