This section contains more frequently asked Microprocessors 8085 MCQs in the various University Level and Competitive Examinations.
PRACTICE IT NOW TO SHARPEN YOUR CONCEPT AND KNOWLEDGE
1. The act of acquiring an instruction is referred as the____ the instruction:
- Fetching
- Fetch cycle
- Both a and b
- None of these
A. Fetching
2. How many bit of instruction on our simple computer consist of one____:
- 2‐bit
- 6‐bit
- 12‐bit
- None of these
C. 12‐bit
3. How many parts of single address computer instruction :
- 1
- 2
- 3
- 4
B. 2
4. Single address computer instruction has two parts:
- The operation code
- The operand
- A and B
- None of these
C. A and B
5. LA stands for:
- Load accumulator
- Least accumulator
- Last accumulator
- None of these
A. Load accumulator
6. Which are the flags of status register:
- Over flow flag
- Carry flag
- Half carry flag
- Zero flag
- All of these
E. All of these
7. The carry is operand by:
- C
- D
- S
- O
A. C
8. The sign is operand by:
- S
- D
- C
- O
A. S
9. The zero is operand by:
- Z
- D
- S
- O
A. Z
10. The overflow is operand by:
- O
- D
- S
- C
A. O
