BIT 2nd Semester
Microprocessor and Computer Architecture Board Question Paper 2080

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BIT 151-2080 ✡
Tribhuvan University
Institute of Science and Technology
2080
✡
Bachelor Level/First Year/Second Semester/Science
Bachelors in Information Technology (BIT 151)
(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 Answer Questions
Attempt any Two question.
[2x10=20]
1.

What is microprocessor? Draw a well labelled block diagram of 8085 microprocessor and explain its different components.

2.

What are different instructions available in SAP 1 computer? Explain the fetch and execution cycle of LDA instruction of SAP 1 computer along with its timing diagram.

3.

What is micro-program and micro-instruction? Describe symbolic micro-program for instruction FETCH routine of basic computer.

Section B

Attempt any Eight questions

[8x5=40]
4.

Write a program to perform 8 bit division of data stored in memory location 8050 by data stored in memory location 8051 and store the quotient in memory location 8052 and remainder in 8053 memory location.

5.

Explain different Logical Microoperations with example.

6.

Explain the register organization of basic computer.

7.

Explain memory hierarchy present in the computer system.

8.

What is DMA? Explain the role of DMA controller in data transfer.

9.

What is pipelining? Explain the four segment instruction pipelining.

10.

Perform 2's complement multiplication of (15) x (-13) using Booth's Multiplication algorithm.

11.

What is addressing mode? Explain different addressing mode in 8085 microprocessor.

12.

Write short notes on:
a) RISC
b) Page Fault