Question: 1 . Keyboard Interfacing: Question: Explain how a 4 x 4 matrix keyboard can be connected to the 8 0 5 1 microcontroller. Write a

1. Keyboard Interfacing:
Question:
Explain how a 4x4 matrix keyboard can be connected to the 8051 microcontroller. Write a short assembly program to detect if any key is pressed.

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