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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 ...
On Asus and HP laptops, fn+esc will lock the fn key as capslock does for shift. I don't have sources for this, but it is true for several laptops I've used. Additionally, some keyboards (e.g. Logitech K345) have the fn key between alt gr and ctrl (replacing the right win and menu keys, with menu being invokable via fn+right ctrl).
The key has the opposite effect of the End key. In limited-size keyboards where the Home key is missing the same functionality can be reached via the key combination of Fn + ← . Its standard symbol ⇱ from ISO/IEC 9995-7 , i.e. U+21F1 ⇱ NORTH WEST ARROW TO CORNER , is used on some full-size keyboards instead of a possibly localized text label.
The UK variant of the Enhanced keyboard commonly used with personal computers designed for Microsoft Windows differs from the US layout as follows: . The UK keyboard has 1 more key than the U.S. keyboard (UK=62, US=61, on the typewriter keys, 102 v 101 including function and other keys, 105 vs 104 on models with Windows keys)
"A function key is a key on a computer or terminal keyboard which can be programmed so as to cause an operating system command interpreter or 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."
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 .
A Control key (marked "Ctrl") on a Windows keyboard next to one style of a Windows key, followed in turn by an Alt key The rarely used ISO keyboard symbol for "Control". In computing, a Control keyCtrl is a modifier key which, when pressed in conjunction with another key, performs a special operation (for example, Ctrl+C).