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Fn is a modifier key, and works like other modifiers keys, such as Ctrl, Shift, Alt and AltGr.For a standard modifier key, the microcontroller inside the keyboard sends a scancode for the modifier itself, which is then interpreted by the operating system and combined with other simultaneous key-presses.
A function key is a key on a computer or terminal keyboard that can be programmed to cause the operating system or an application program to perform certain actions, a form of soft key. [1] On some keyboards/computers, function keys may have default actions, accessible on power-on. A 104-key US English keyboard layout with the function keys in ...
Some laptops and compact keyboards also have a Function Lock - FN Lock. On these devices, a Fn modifier key is used to combine keys to save room and add non-standard functionality; a common use is merging the row with keys F1- F12 with keys that adjust settings such as display brightness, media volume and playback, and keyboard illumination.
Ctrl+F2 (or Fn+Ctrl+F2 on some keyboards) [notes 2] Alt: F10: Pop up contextual menu for currently selected objects (aka context menu) ⇧ Shift+F10 or ≣ Menu: Varies with laptop / extended keyboard type; enable Mouse keys in Universal Access, then Fn+Ctrl+5 or Ctrl+5 (numeric keypad) or Function+Ctrl+I (laptop) ≣ Menu: ≣ Menu or ⇧ ...
Compact keyboards, such as those used in laptops, often have a Fn key to save space by combining two functions that are normally on separate keys. On laptops, pressing Fn plus one of the function keys, e.g., F2, often control hardware functions. Keyboards that lack a dedicated numeric keypad may mimic its functionality by combining the Fn key ...
Incidentally, the IBM PCjr keyboard, which has only, I think, 60-something keys, has an Fn key, used to issue F1-F10 key codes and some others. So, its purpose is similar to the purpose on laptops with regard to the numeric keypad (but not for sound controls, display brightness, etc.) —Preceding unsigned comment added by 71.242.7.208 ( talk ...
Control Center received a significant redesign in iOS 11, unifying its different pages into one and allowing users to 3D Touch (or long press on devices without 3D Touch) [7] the icons for additional options, and vertical sliders allow users to adjust volume and brightness. [8]
Notebook computers typically include additional assignments shared with function keys: reduce and increase brightness, volume up, volume down, mute, and eject . Apple, since the release of the Pro Keyboard, provides these last four keys on desktop keyboards above the numeric keypad where status indicator lights are on many IBM PC keyboards.