Computer Science: An Overview: Global Edition (12th Edition)

Published by Pearson Higher Education
ISBN 10: 1292061162
ISBN 13: 978-1-29206-116-0

Chapter 1 - Data Storage - Section 1.1 - Bits and Their Storage - Questions & Exercises - Page 38: 3

Answer

The sequence of events that occurs when the upper input is temporarily set to 1

Work Step by Step

Assuming that both inputs to the flip-flop in given figure are 0, describe the sequence of events that occurs when the upper input is temporarily set to 1. The output of the upper OR gate will become 1, causing the upper NOT gate to produce an output of 0. This will cause the lower OR gate to produce a 0, causing the lower NOT gate to produce a 1. This 1 is seen as the output of the flip-flop as well as being fed back to the upper OR gate, where it holds the output of that gate at 1, even after the flip-flop’s input has returned to 0.
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