Method and apparatus for selecting a keyboard on a computer syst

Details Method and apparatus for selecting a keyboard on a computer syst Method and apparatus for selecting a keyboard on a computer syst

1991-02-28

1994-01-11

Envall, Jr, Roy N.

Boots, shoes, and leggings

364234, 3642341, 36470912, 3642394, G06F 304

Patent

active

052789586

ABSTRACT:
The selection of a keyboard on a computer system can automatically be achieved. If any externally provided keyboard which transmits transmission data upon the turning on of a computer system is connected to an external keyboard controller, a selection circuit selects that external keyboard controller for controlling the externally provided keyboard. If, on the other hand, no externally provided keyboard is connected to the external keyboard controller, the selection circuit selects an incorporated keyboard controller for controlling an incorporated keyboard which is incorporated in the computer system. When the externally provided keyboard is connected to the external keyboard controller, the selection of a keyboard by the selection circuit is achieved depending upon whether or not the computer system receives transmission data from the externally provided keyboard.

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"Technical Reference," IBM Personal Computer Hardware Reference Library, Mar. 1984.

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