Computers problems
- 1. Which bus is bidirectional?
Options- A. Address bus
- B. Control bus
- C. Data bus
- D. None of the above Discuss
Correct Answer: Data bus
- 2. Which of the following was not a design improvement for the 8086/8088 over the 8085?
Options- A. Execution unit (EU)
- B. 16-bit data bus
- C. Arithmetic logic unit (ALU)
- D. Bus interface unit (BIU) Discuss
Correct Answer: Arithmetic logic unit (ALU)
- 3. Which of the following is not a computer bus?
Options- A. Data bus
- B. Control bus
- C. Timer bus
- D. Address bus Discuss
Correct Answer: Timer bus
- 4. What is occurring when two or more sources of data attempt to use the same bus?
Options- A. Bus contention
- B. Direct memory access
- C. Bus interruption
- D. PPI Discuss
Correct Answer: Bus contention
- 5. Which of the following is not a jump instruction?
Options- A. JB (jump back)
- B. JA (jump above)
- C. JO (jump if overflow)
- D. JMP (unconditional jump) Discuss
Correct Answer: JB (jump back)
- 6. DMA is particularly suited for data transfer between the ________.
Options- A. disk drive and CPU
- B. disk drive and RAM
- C. disk drive and ROM
- D. disk drive and I/O Discuss
Correct Answer: disk drive and RAM
- 7. Which of the following is not an 8086/8088 general-purpose register?
Options- A. Code segment (CS)
- B. Data segment (DS)
- C. Stack segment (SS)
- D. Address segment (AS) Discuss
Correct Answer: Address segment (AS)
- 8. The first Intel microprocessor to contain on-board cache memory was the ________.
Options- A. 80386
- B. 80486
- C. Pentium
- D. Pentium Pro Discuss
Correct Answer: 80486
- 9. Which is not part of the execution unit (EU)?
Options- A. Arithmetic logic unit (ALU)
- B. Clock
- C. General registers
- D. Flags Discuss
Correct Answer: Clock
- 10. Which of the following is not a basic element within the microprocessor?
Options- A. Microcontroller
- B. Arithmetic logic unit (ALU)
- C. Register array
- D. Control unit Discuss
Correct Answer: Microcontroller
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