When a key is pressed on the keyboard, which hardware interruptis executed?

IRQ1 interrupt

Explanation:  IRQ1 is the hardware interrupt request which is produced from the processor side mainly reserved for keyboard input . When a key  is pressed from the keyboard then a input get produced then there is a request from the main processor and this interrupt gets executed.There are some devices which do not have the keyboard still this interrupt is only preserved for it.

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