Questions
Syllabus
Qns. By Syllabus

Semester

Subject

Year

Tribhuwan University

Institute of Science and Technology

2081

Bachelor Level / Second Year / Third Semester / Science

B.Sc in Computer Science and Information Technology (CSC213)

(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.
What is pipelining? Explain pipelining using 4-segment instruction cycle. What are its advantages?[10]
2.
What do you understand by priority interrupt? Explain polling, daisy-chaining and parallel priority interrupt.[10]
3.
Draw flowchart for addition and subtraction of signed 2's complement numbers and perform the operation (90-43).[10]
Section B

Short Answers Questions

Attempt any Eight questions.
[8*5=40]
4.
How parity bit is generated in even parity? Demonstrate with suitable table and circuit diagram. [5]
5.
What is instruction format? Explain instruction formats of basic computer and give two examples of each type of instructions. [5]
6.
What microoperations are performed in fetch phase of instruction cycle of basic computer? Explain with suitable circuit diagram. [5]
7.
Explain common bus system of basic computer with a diagram. [5]
8.
What do you understand by Flynn's classification? Explain. [5]
9.
Why I/O interface is important? Discuss the concept of programmed I/O with suitable flowchart. [5]
10.
What is meant by cache mapping? Explain working of direct mapping with suitable block diagram. [5]
11.
Explain different types of shift microoperations. [5]
12.
Write short notes on: a) CISC b) Conditional branch [5]