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Digital Concepts problems

1. An ADC is an analog-to-digital converter.
Options
A. True
B. False

Correct Answer: True

2. Digital systems require that voltage levels change between high and low.
Options
A. True
B. False

Correct Answer: True

3. In a negative logic system, a high is represented by 0.
Options
A. True
B. False

Correct Answer: True

4. Parallel transmission is faster than serial.
Options
A. True
B. False

Correct Answer: True

5. Temperature variation is normally an analog quantity.
Options
A. True
B. False

Correct Answer: True

6. PALs are relatively simple integrated circuit devices.
Options
A. True
B. False

Correct Answer: True

7. The arithmetic/logic unit will send the results of its decisions to memory.
Options
A. True
B. False

Correct Answer: False

8. An inverter performs a NOT operation.
Options
A. True
B. False

Correct Answer: True

9. Four bits equal one byte.
Options
A. True
B. False

Correct Answer: False

10. An invalid digital signal is used as a zero.
Options
A. True
B. False

Correct Answer: False

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Boolean Algebra and Logic Simplification Code Converters and Multiplexers Combinational Logic Analysis Combinational Logic Circuits Computers Counters Describing Logic Circuits Digital Arithmetic Operations and Circuits Digital Concepts Digital Design Digital Signal Processing Digital System Projects Using HDL Ex-OR and Ex-NOR Gates Flip-Flops Integrated-Circuit Logic Families Integrated Circuit Technologies Interfacing to the Analog World Logic Families and Their Characteristics Logic Gates Memory and Storage Microprocessor Fundamentals MSI Logic Circuits Multivibrators and 555 Timer Number Systems and Codes Programmable Logic Device Shift Registers Signals and Switches The 8051 Microcontroller

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