// Workers AI · dad joke modeWhat did IBM LPFK keyboard say? I'm a key player.
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The Lighted Program Function Keyboard (LPFK) is a computer input device manufactured by IBM that presents an array of buttons associated with lights.[1] Each button is associated to a function in supporting software, 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.
References
[edit]- ↑ IBM 5080 Graphics System Principles of Operation (PDF), IBM, March 1984
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