Tribhuwan University

Institute of Science and Technology

Model

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.
What is Microprocessor? Draw a well labeled block diagram of 8085 microprocessor and explain it.[10]
2.
Explain the components of SAP 1 computer with its block diagram. What are different instructions available in SAP 1 computer?[10]
3.
What is micro-operation and micro-instruction? Create a symbolic and binary micro program for FETCH and ADD operation.[10]
Section B

Short Answers Questions

Attempt any Eight questions.
[8*5=40]
4.
What is DMA? Explain the basic DMA process. [5]
5.
Write a program to perform 8 bit multiplication in 8085 processor. (Assume data and memory yourself). [5]
6.
Explain 4 segment instruction pipeline. [5]
7.
Differentiate between RISC and CISC computer. [5]
8.
Perform multiplication of (-9) x (-13) using Booth’s Multiplication algorithm. [5]
9.
Explain about memory hierarchy in computer. [5]
10.
What is flag? What are different flags available in 8085 microprocessor? [5]
11.
Differentiate between microprogrammed and hardwired control unit. [5]
12.
Write short notes on(Among three only attempt two): a.) Flynn's Classification Write short notes on: b.) Memory protection Write short notes on: c.) Memory mapped I/O [2.5+2.5+2.5]