Question

how many combination keys on keyboard ​

Answer 1

A key combination is the use of two or more keys on a keyboard to generate a specific result. These keys are pressed either at the same time, or one after the other while holding down each key until the last key is pressed.

Many key combinations are shortcuts to performing various actions in the operating system or a program that is running. These shortcuts may help save time when working with a document. When written, key combinations are often noted with a plus sign (+) between the names of the combined keys.

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Answer 2

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