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Key rollover is the ability of a computer keyboard to correctly handle several simultaneous keystrokes. A keyboard with n-key rollover (NKRO) can correctly detect input from each key on the keyboard at the same time, regardless of how many other keys are also being pressed. Keyboards that lack full rollover will register an incorrect keystroke ...
Mouse keys is a feature of some graphical user interfaces that uses the keyboard (especially numeric keypad) as a pointing device (usually replacing a mouse). Its roots lie in the earliest days of visual editors when line and column navigation was controlled with arrow keys .
Alt+Space then S [notes 10] then Arrow Keys and ↵ Enter (to save new size) Alt+F3 then S then Arrow Keys: Alt+F8 then Arrow Keys / Alt+Right Mouse Button [notes 11] Ctrl+x, then ^ vertically Alt+] (snap window to right half of screen), Alt+[(snap window to left half of screen) Keep window always on top Ctrl+Alt+Esc (toggles on/off) Hide the ...
This variant adopted to newer games using mouse-look doesn't really need worry about the turn left and turn right keys. Instead S = strafe left, D = strafe right, A = backpedal, and space or F = forward. This is a more natural feel on the keyboard as your fingers rest on the home row. The comfort and usability points from ESDF apply here.
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. The keyboard driver also tracks the shift, alt and control state of the keyboard.
ToggleKeys (or Toggle Keys) is a feature of Microsoft Windows. It is an accessibility function which is designed for people who have vision impairment or cognitive disabilities . When ToggleKeys is turned on, the computer will provide sound cues when the locking keys ( ⇪ Caps Lock , Num Lock , or Scroll Lock ) are pressed.
Some non-English language keyboards have special keys to produce accented modifications of the standard Latin-letter keys. In fact, the standard British keyboard layout includes an accent key on the top-left corner to produce àèìòù, although this is a two step procedure, with the user pressing the accent key, releasing, then pressing the letter key.
Break/Pause key on PC keyboard. The Break key (or the symbol ⎉) of a computer keyboard refers to breaking a telegraph circuit and originated with 19th century practice. In modern usage, the key has no well-defined purpose, but while this is the case, it can be used by software for miscellaneous tasks, such as to switch between multiple login sessions, to terminate a program, or to interrupt ...