Question

a keyboard works on which of the concepts​

Answer 1

Answer:

concept keyboard is a flat board that contains a grid of buttons. Each button can be programmed to do whatever you want. ... Concept keyboards are used when fast input is needed and are ideally suited to selecting from a limited range of choices such as fast food restaurants.

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Answer 2

Explanation:

Keyboard keys (buttons) typically have a set of characters engraved or printed on them, and each press of a key typically corresponds to a single written symbol. However, producing some symbols may require pressing and holding several keys simultaneously or in sequence.[2] While most keyboard keys produce letters, numbers or symbols (characters), other keys or simultaneous key presses can prompt the computer to execute system commands, such as such as the Control-Alt-Delete combination used with Microsoft Windows.[3][4]. In a modern computer, the interpretation of key presses is generally left to the software: