means that its "out of the box" layout can be notified to the system, making the keyboard immediately ready to use without the need for further configuration, unless the user so desires. This also enables manufacture of generic keyboards for a variety of language markets, that differ only in the symbols engraved on the keytops.

Keystroke sensing

Membrane

A common membrane design consists of three layers. The top and bottom layer have exposed electrical matrix traces, and the

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