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  2. Continuous performance task - Wikipedia

    en.wikipedia.org/wiki/Continuous_performance_task

    In the Conners' CPT-III clients are told to click the space bar when they are presented with any letter except the letter "X". The person must refrain from clicking if they see the letter "X" presented. [1] [9] In QbTest, [5] the client is seated in front of a computer wearing a headband with a reflective marker. During the 15–20 minutes test ...

  3. Space bar - Wikipedia

    en.wikipedia.org/wiki/Space_bar

    The space bar is on the bottom center of the keyboard. The space bar, spacebar, blank, or space key, [1] is a key on a typewriter or alphanumeric keyboard in the form of a horizontal bar in the lowermost row, significantly wider than all other keys. Its main purpose is to conveniently enter a space, e.g., between words during typing. [2]

  4. 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 .

  5. Table of keyboard shortcuts - Wikipedia

    en.wikipedia.org/wiki/Table_of_keyboard_shortcuts

    ⇧ Shift+⌘ Cmd+4 then Space then move mouse and click: Alt+Print Screen : Ctrl+Alt+Show Windows then move mouse and click Copy screenshot of window to clipboard Ctrl+⇧ Shift+⌘ Cmd+4 then Space then move mouse and click: Alt+Print Screen : Ctrl+Alt+Show Windows then move mouse and click Save screenshot of arbitrary area as file

  6. 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.

  7. Enter key - Wikipedia

    en.wikipedia.org/wiki/Enter_key

    On IBM's 3270 and 5250 line of terminals, the Enter key was located to the right of the space bar and was used to send the contents of the terminal's buffer to the host computer. The Return key was located in a more standard location and was used to generate a new line.

  8. Modifier key - Wikipedia

    en.wikipedia.org/wiki/Modifier_key

    The above example is known as "SandS", standing for "Space and Shift" in Japan. [1] But any number of any combinations are possible. [2] To press shift+space in the previous example, you need in addition to a space/shift dual role key, one of (a) another space/shift key, (b) a usual shift, or (c) a usual space key.

  9. Double-click - Wikipedia

    en.wikipedia.org/wiki/Double-click

    A single click highlights the file's icon and another single click (on the filename, not the icon) makes the name of the file editable. A user who tries to execute this action may inadvertently open the file (a double-click) by clicking too quickly, while a user who tries to open the file may find it being renamed by clicking too slowly.