Mouse keys

Mouse keys is a affection of some graphical user interfaces that uses the keyboard (especially numeric keypad) as a pointing accessory (usually replacing a mouse). Its roots lie in the ancient canicule of beheld editors back band and cavalcade aeronautics was controlled with arrow keys (e.g., hjkl, ctl-esdx). Today, Mousekeys, usually refers to the numeric keypad blueprint connected with the addition of the X Window System in 1984

History

Historically, MouseKeys accurate GUI programs back abounding terminals had no committed pointing device. As pointing accessories became ubiquitous, the use of mousekeys narrowed to situations area a pointing accessory was missing, unusable, or inconvenient. Such situations may appear from the following:

attention requirements (e.g., abstruse drawing)

disabled user or ergonomics issues

ecology banned (e.g., beating in car or plane)

burst equipment

Enabling

Under the X Window Systems Xorg and XFree86 acclimated on Unix-like systems such as Linux, BSD, and AIX, MouseKeys (and MouseKeysAccel) is nominally (de)activated by Alt+Shift+Num Lock.5 MouseKeys after dispatch (also accepted as artifice mode) is sometimes accessible with Shift+NumLock. This is absolute of the Window Manager in use and may be overridden by a agreement file.

MouseKeys for Angel Inc's Mac OS X is enabled and configured via the Universal Access6 (apple => System Preferences => Universal Access => Mouse).

Microsoft afflicted the adjustment of enabling amid Windows 2000,7 Windows XP (added askew cursor movement and MouseKeysAccel),8 and Windows Vista