Tribhuwan University

Institute of Science and Technology

2082

Bachelor Level / First Year / Second Semester / Science

Bachelors in Information Technology (BIT151)

(Microprocessor and Computer Architecture)

Full Marks: 60

Pass Marks: 24

Time: 3 Hours

Candidates are required to give their answers in their own words as for as practicable.

The figures in the margin indicate full marks.

Section A

Long Answers Questions

Attempt any TWO questions.
[2*10=20]
1.
Differentiate between RISC and CISC architecture. Multiply 9 and 7 using Booth’s Multiplication algorithm. [4+6]
2.
Explain the features of SAP2 computer with well labeled block diagram. How is it different compared to SAP1 Computer? [8+2]
3.
Explain different addressing modes in 8085 microprocessor. Explain any five arithmetic instructions in 8085 microprocessor with suitable example. [5+5]
Section B

Short Answers Questions

Attempt any Eight questions.
[8*5=40]
4.
Write an assembly language program to multiply 08H and 09H, store the product in memory location 8050H and carry in 8051H using 8085 microprocessor instructions. [5]
5.
Explain different arithmetic micro operations in brief. [5]
6.
Subtract (1234)10 from (1197)10 using 9’s complement and 10’s complement method. [5]
7.
Explain about memory hierarchy in computer system. [5]
8.
Write symbolic microprogram for FETCH operation. [5]
9.
What are different pipelining hazards? Explain along with their solution. [5]
10.
Explain all the flags in 8085 microprocessor. [5]
11.
Explain the role of DMA controller in DMA operation. [5]
12.
Write short notes on: (a) Microprogrammed Control Unit (b) Virtual Memory. [5]