Digital Fundamentals
By Thomas Floyd
11th Edition
, PART 1
Problem Solutions
,
, 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
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.
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
2