Do you know what occurs when a key is pressed on a keyboardwhile a software is creating a file on a disc? What do you believeoccurs when a key is pressed on a keyboard? I'm interested as towhether the key is put into the keyboard buffer before or after the fileis created, assuming you are conversant with IRQ levels.

Answered: Do you know what occurs when a key is…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Do you know what occurs when a key is pressed on a keyboard
while a software is creating a file on a disc? What do you believe
occurs when a key is pressed on a keyboard? I'm interested as to
whether the key is put into the keyboard buffer before or after the file
is created, assuming you are conversant with IRQ levels.

Expert Solution

Step 1

Given:

If you push a key on the keyboard while a piece of software is making a disc file, what do you suppose will happen If you are acquainted with IRQ levels, let me ask you this: When the file is formed, does the key enter the keyboard buffer, or does it enter it after

A hardware interrupt is triggered whenever a user presses or releases a key on the keyboard, which causes a signal to be sent up the keyboard cable.

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