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- Question
Which statement below best describes the function of a decoder?
Options- A. A decoder will convert a decimal number into the proper binary equivalent.
- B. A decoder will convert a binary number into a specific output representing a particular character or digit.
- C. Decoders are used to prevent improper operation of digital systems.
- D. Decoders are special ICs that are used to make it possible for one brand of computer to talk to another.
- Correct Answer
- A decoder will convert a binary number into a specific output representing a particular character or digit.
- 1. A major drawback to an
latch is its ________.
Options- A. complexity
- B. slow speed
- C. invalid condition
- D. latch mode Discuss
- 2. Most computers store data in strings of ________ bits called a ________.
Options- A. 8, word
- B. 8, byte
- C. 16, word
- D. 16, byte Discuss
- 3. Flash memories are frequently used in place of floppy or small-capacity hard disk drives in portable computers.
Options- A. True
- B. False Discuss
- 4. Which of the following groups of logic devices would be the minimum required for a MOD-64 synchronous counter?
Options- A. Five flip-flops, three AND gates
- B. Seven flip-flops, five AND gates
- C. Four flip-flops, ten AND gates
- D. Six flip-flops, four AND gates Discuss
- 5. A simultaneous A/D converter is also known as a(n) ________ A/D converter.
Options- A. flash
- B. synchronous
- C. comparator
- D. asynchronous Discuss
- 6. How can the cross-coupled NAND flip-flop be made to have active-HIGH S-R inputs?
Options- A. It can't be done.
- B. Invert the Q outputs.
- C. Invert the S-R inputs. Discuss
- 7. The 7475 is an example of an IC D latch (also called a bistable latch) that contains four transparent D latches.
Options- A. True
- B. False Discuss
- 8. In VHDL, the mode of a port does not define:
Options- A. an input.
- B. an output.
- C. both an input and an output.
- D. the TYPE of the bit. Discuss
- 9. Why is a pull-up resistor needed when connecting TTL logic to CMOS logic?
Options- A. to increase the output LOW voltage
- B. to decrease the output LOW voltage
- C. to increase the output HIGH voltage
- D. to decrease the output HIGH voltage Discuss
- 10. The total sink current decreases with an increase in each load gate input.
Options- A. True
- B. False Discuss
More questions
Correct Answer: invalid condition
Correct Answer: 8, byte
Correct Answer: True
Correct Answer: Six flip-flops, four AND gates
Correct Answer: flash
Correct Answer: Invert the S-R inputs.
Correct Answer: True
Correct Answer: the TYPE of the bit.
Correct Answer: to increase the output HIGH voltage
Correct Answer: False
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