- IBM LPFK
The Lighted Program Function Keyboard (LPFK) is a
computer input device manufactured byIBM that presents an array of buttons associated with lights. Each button is associated to a function in supportingsoftware , and according to the availability of that function in current context of the application, the light is switched on or off, giving the user a graphical feedback on the set of available functions. Usually the button to function mapping is customizable.
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