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On these keyboards the Control key was placed closest to the space bar, then the Meta key outside Control. The space-cadet keyboard added the Super key outside Meta, and the Hyper key outside that. All these keys produced shortcuts (2 4 -1 of them for every letter), but the Control ones were easiest to type and most popular, and the Meta ones ...
The space-cadet keyboard was equipped with seven modifier keys: four keys for bucky bits (⎈ Control, Meta, Super, and Hyper), and three shift keys, called ⇧ Shift, Top, and Front (which was labeled on the front of the key; the top was labeled Greek). Meta had been introduced on the earlier Knight keyboard, while Hyper and Super were ...
The modifier cluster on the bottom-left of the space-cadet keyboard Present: Control, Alt Mode, ⇧ Shift, Meta, Super, Hyper, Top, and Greek The "space-cadet" keyboard, designed in 1978 at MIT for the Lisp machine, introduced two new modifier keys, "Super" and "Hyper", [3] compared to the earlier Knight keyboard also used with Lisp machines.
Fn (Function) – often present on small-layout keyboards, or keyboard where the top row of function keys have multimedia functions like controlling volume attached. The (Sun) Meta key, Windows key, (Apple) Cmd key, and the analogous "Amiga key" (A) on Amiga computers, are usually handled equivalently. Under the Linux operating system, the ...
On the Macintosh and Apple keyboards, the modifier keys are the Option key and Command key, respectively. On Sun Microsystems and Lisp machine keyboards, the Meta key is used as a modifier and for Windows keyboards, there is a Windows key. Compact keyboard layouts often use a Fn key.
The Knight keyboard is notable for its influence on Emacs keybindings, particularly for helping popularize the meta key, which originated with the Stanford keyboard. [2] The layout is also noteworthy: the meta key was outside the control key, which is opposite from the layout used on most modern keyboards, dating to the Model M IBM PC keyboard, which uses the Alt key instead, and places it ...
On USB keyboards, the ⌘ Command keys are mapped to standard keycodes reserved for GUI functions. [19] When using a Macintosh computer with a keyboard lacking ⌘ Command keys, the ⊞ Windows keys used on Microsoft Windows oriented keyboards, or the Meta keys used on Sun and other Unix keyboards, can be used in place of the Command keys. [20]
The Command key , used in most Mac keyboard shortcuts. The key functions as a Meta key or Super key in Unix-like environments, and is equally equivalent to the Windows key in Windows environments, although in common applications it performs the same function as the Windows Control key. Compared to their equivalents on the standard IBM PC ...