Computers problems
- 1. Which of the following is not an enhancement to the Pentium that was unavailable in the 8086/8088?
Options- A. "Pipelined" architecture
- B. Expansion of cache memory
- C. Inclusion of an internal math coprocessor
- D. Data/address line multiplexing Discuss
Correct Answer: Data/address line multiplexing
- 2. Which of the following is not a computer functional block?
Options- A. Analog-to-digital converter
- B. Central-processing unit
- C. Memory
- D. Input/output ports Discuss
Correct Answer: Analog-to-digital converter
- 3. A 20-bit address bus can locate ________.
Options- A. 1,048,576 locations
- B. 2,097,152 locations
- C. 4,194,304 locations
- D. 8,388,608 locations Discuss
Correct Answer: 1,048,576 locations
- 4. Polled I/O works best when ________.
Options- A. there are no priority considerations
- B. priority considerations are frequent
- C. the polling rate exceeds 1000 s
- D. the polling rate is below 1000 s Discuss
Correct Answer: there are no priority considerations
- 5. Which microprocessor has multiplexed data and address lines?
Options- A. 8086/8088
- B. 80286
- C. 80386
- D. Pentium Discuss
Correct Answer: 8086/8088
- 6. A mnemonic is an English-like instruction that is converted by an assembler into a machine code for use by a processor.
Options- A. True
- B. False Discuss
Correct Answer: True
- 7. Machine language is independent of the type of microprocessor in a computer system.
Options- A. True
- B. False Discuss
Correct Answer: False
- 8. Chip designers are always trying to increase the clock speed.
Options- A. True
- B. False Discuss
Correct Answer: True
- 9. Polling is the process of pausing the normal sequence of instructions to cause the processor to execute a separate set of I/O instructions instead.
Options- A. True
- B. False Discuss
Correct Answer: False
- 10. Instructions for the 80X86 family are downward compatible.
Options- A. True
- B. False Discuss
Correct Answer: False
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