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- Question
What is the significance of the inverted triangles on the outputs of the device in the given figure?
Options- A. They represent inverters and mean that the outputs are active-LOW.
- B. They represent buffers and mean that the outputs can drive 40 TTL loads, instead of the normal 10.
- C. It means that the outputs will be active only if a change has occurred at that memory location since the last read/write cycle.
- D. The outputs are tristated.
- Correct Answer
- The outputs are tristated.
- 1. A(n)________ is not a functional unit of a computer.
Options- A. input unit
- B. memory unit
- C. modem
- D. control unit Discuss
- 2. A modulus-12 ring counter requires a minimum of ________.
Options- A. 10 flip-flops
- B. 12 flip-flops
- C. 6 flip-flops
- D. 2 flip-flops Discuss
- 3. Which is not characteristic of a shift register?
Options- A. Serial in/parallel in
- B. Serial in/parallel out
- C. Parallel in/serial out
- D. Parallel in/parallel out Discuss
- 4. The base of the hexadecimal system is:
Options- A. eight.
- B. sixteen.
- C. ten.
- D. two. Discuss
- 5. Hexadecimal is a base 4 numbering system.
Options- A. True
- B. False Discuss
- 6. How many inputs must a full-adder have?
Options- A. 2
- B. 3
- C. 4
- D. 5 Discuss
- 7. In a negative logic system, a high is represented by 0.
Options- A. True
- B. False Discuss
- 8. TTL requires a constant supply voltage of 8.0 V.
Options- A. True
- B. False Discuss
- 9. The ADC0804 has ________ resolution.
Options- A. 4-bit
- B. 8-bit
- C. 16-bit
- D. 32-bit Discuss
- 10. ________ is the highest-value seven-bit binary number.
Options- A. 128
- B. 127
- C. 126
- D. 125 Discuss
More questions
Correct Answer: modem
Correct Answer: 12 flip-flops
Correct Answer: Serial in/parallel in
Correct Answer: sixteen.
Correct Answer: False
Correct Answer: 3
Correct Answer: True
Correct Answer: False
Correct Answer: 8-bit
Correct Answer: 127
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