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- Question
An offset error in a DAC will show up as an incorrect analog output ________.
Options- A. only for higher value inputs
- B. only for lower value inputs
- C. only for certain (scattered) inputs
- D. for all inputs
- Correct Answer
- for all inputs
- 1. The ________ can generate any possible logic function of the input variables because it generates every possible AND product term.
Options- A. GAL
- B. SOP
- C. PROM
- D. LAB Discuss
- 2. The ________ ensures that only one IC is active at a time to avoid a bus conflict caused by two ICs writing different data to the same bus.
Options- A. control bus
- B. control instructions
- C. address decoder
- D. CPU Discuss
- 3. Inside a computer all arithmetic operations take place in the ________.
Options- A. accumulator register
- B. ALU
- C. CPU
- D. B register Discuss
- 4. A binary code that progresses such that only one bit changes between two successive codes is:
Options- A. nine's-complement code
- B. 8421 code
- C. excess-3 code
- D. Gray code Discuss
- 5. Assume that you have a 3-input NAND gate but need only a 2-input gate. The unused input should be ________.
Options- A. connected to ground
- B. left open
- C. connected to a HIGH
- D. any of the above Discuss
- 6. One hex digit is sometimes referred to as a(n):
Options- A. byte
- B. nibble
- C. grouping
- D. instruction Discuss
- 7. A group of 6 bits is also known as 1 byte.
Options- A. True
- B. False Discuss
- 8. A multiplexed display being driven by a logic circuit:
Options- A. accepts data inputs from one line and passes this data to multiple output lines
- B. accepts data inputs from several lines and allows one of them at a time to pass to the output
- C. accepts data inputs from multiple lines and passes this data to multiple output lines
- D. accepts data inputs from several lines and multiplexes this input data to four BCD lines Discuss
- 9. In an 8051 program DA A adjusts the value in the accumulator resulting from an addition into two BCDs.
Options- A. True
- B. False Discuss
- 10. The parallel transmission of digital data:
Options- A. is much slower than the serial transmission of data.
- B. requires only one signal line between sender and receiver.
- C. requires as many signal lines between sender and receiver as there are data bits.
- D. is less expensive than the serial method of data transmission. Discuss
More questions
Correct Answer: PROM
Correct Answer: address decoder
Correct Answer: ALU
Correct Answer: Gray code
Correct Answer: connected to a HIGH
Correct Answer: nibble
Correct Answer: False
Correct Answer: accepts data inputs from several lines and allows one of them at a time to pass to the output
Correct Answer: True
Correct Answer: requires as many signal lines between sender and receiver as there are data bits.
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