A small circle on the output of a logic gate is used to represent the: Comparato

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Question
A small circle on the output of a logic gate is used to represent the:
Options
A. Comparator operation.
B. OR operation.
C. NOT operation.
D. AND operation.

Correct Answer

NOT operation.

Describing Logic Circuits problems

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6. Which statement below best describes a Karnaugh map?
Options
A. A Karnaugh map can be used to replace Boolean rules.
B. The Karnaugh map eliminates the need for using NAND and NOR gates.
C. Variable complements can be eliminated by using Karnaugh maps.
D. Karnaugh maps provide a visual approach to simplifying Boolean expressions.

7. The binary numbers A = 1100 and B = 1001 are applied to the inputs of a comparator. What are the output levels?
Options
A. A > B = 1, A < B = 0, A < B = 1
B. A > B = 0, A < B = 1, A = B = 0
C. A > B = 1, A < B = 0, A = B = 0
D. A > B = 0, A < B = 1, A = B = 1

9. Which of the following statements accurately represents the two BEST methods of logic circuit simplification?
Options
A. Boolean algebra and Karnaugh mapping
B. Karnaugh mapping and circuit waveform analysis
C. Actual circuit trial and error evaluation and waveform analysis
D. Boolean algebra and actual circuit trial and error evaluation

10. Each "1" entry in a K-map square represents:
Options
A. a HIGH for each input truth table condition that produces a HIGH output.
B. a HIGH output on the truth table for all LOW input combinations.
C. a LOW output for all possible HIGH input conditions.
D. a DON'T CARE condition for all possible input truth table combinations.

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