Solutions Manual for Digital Fundamentals 11th Edition by Thomas Floyd , ISBN: 9780132737968 |All Chapters Covered| Guide A+

Solutions Manual for
Digital Fundamentals,
11e Thomas Floyd (All
Chapters)
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, PART 1

Problem Solutions
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,Chapter 1


CHAPTER 1
INTRODUCTORY CONCEPTS

Section 1-1 Digital and Analog Quantities

1. Digital data can be transmitted and stored more efficiently and reliably than analog data. Also,
digital circuits are simpler to implement and there is a greater immunity to noisy environments.

2. Pressure is an analog quantity.

3. A clock, a thermometer, and a speedometer can have either an analog or a digital output.


Section 1-2 Binary Digits, Logic Levels, and Digital Waveforms
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4. In positive logic, a1 is represented by a HIGH level and a 0 by a LOW level. In negative logic,
a 1 is represented by a LOW level, and a 0 by a HIGH level.

5. HIGH = 1; LOW = 0. See Figure 1-1.
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6. A 1 is a HIGH and a 0 is a LOW:
(a) HIGH, LOW, HIGH, HIGH, HIGH, LOW, HIGH
(b) HIGH, HIGH, HIGH, LOW, HIGH, LOW, LOW, HIGH




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, Chapter 1

7. See Figure 1-2.




Ampl
= 10 V




tPW = 2.7 s
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8. T = 4 ms. See Figure 1-3.
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9. f= = = 0.25 kHz = 250 Hz
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T 4 ms

10. The waveform in Figure 1-61 is periodic because it repeats at a fixed interval.

11. tW = 2 ms; T = 4 ms
t   2 ms 
% duty cycle =  W 100 =   100 = 50%
T   4 ms 

12. See Figure 1-4.




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