Tribhuvan University
Bachelor of Science in Computer Science and Information Technology
Semester 2 · TU Board 2080 (new course)
Course Title: Microprocessor (CSC167)
Full Marks: 60Pass Marks: 24Time: 3 hours
Candidates are required to give their answers in their own words as far as practicable. The figures in the margin indicate full marks.
Attempt any TWO question.(2 × 10 = 20)
- 1.10
Difference between 8085 and 8086 microprocessor. Explain the concept of demultiplexing of address bus and why is it required?
- 2.10
Write an Assembly program for calculating the factorial of a number using 8085 microprocessor.
- 3.10
Draw a block diagram of 80286 microprocessor and explain.
Answer comingAlso asked in 2080, 2076, 2075
- 4.10
What is paging? Explain the concept of memory access in protected mode.
- 5.10
What is the importance of direct memory access? Explain the mechanism of direct memory access.
- 6.10
List different types of ports. What are the main characteristics of programmable interrupt controller 8259A?
- 7.10
Difference between instruction cycle and machine cycle. Draw timing diagram of MVI A, 32 H.
Answer comingAlso asked in 2082, 2080, 2079, 2078, 2075
- 9.10
Explain different tyes of system buses and also indicate wheather they are unidirectional or bidirectional.
- 10.10
What is the significance of interrupt masking? Difference between vectored and polled interrupt.
- 11.10
Illustrate memory access in GDT.
- 12.10
Write short notes on :
- Jumps
- Accmulator
Attempt any EIGHT question.(8 × 5 = 40)
- 1.10
Difference between 8085 and 8086 microprocessor. Explain the concept of demultiplexing of address bus and why is it required?
- 2.10
Write an Assembly program for calculating the factorial of a number using 8085 microprocessor.
- 3.10
Draw a block diagram of 80286 microprocessor and explain.
Answer comingAlso asked in 2080, 2076, 2075
- 4.10
What is paging? Explain the concept of memory access in protected mode.
- 5.10
What is the importance of direct memory access? Explain the mechanism of direct memory access.
- 6.10
List different types of ports. What are the main characteristics of programmable interrupt controller 8259A?
- 7.10
Difference between instruction cycle and machine cycle. Draw timing diagram of MVI A, 32 H.
Answer comingAlso asked in 2082, 2080, 2079, 2078, 2075
- 9.10
Explain different tyes of system buses and also indicate wheather they are unidirectional or bidirectional.
- 10.10
What is the significance of interrupt masking? Difference between vectored and polled interrupt.
- 11.10
Illustrate memory access in GDT.
- 12.10
Write short notes on :
- Jumps
- Accmulator
— The End —