BCA 2nd Semester
Microprocessor & Computer Architecture Board Question Paper (2022 Batch)

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Tribhuvan university

Bachelor In Computer Application

Course Title: Microprocessor & Computer Architecture

Code No: CACS 155

Semester:II

2024

Full Marks:60 Pass Marks:24 Time:3 hours

Candidates are required to answer the question in their own words as far as possible.

Group A
Group B
Attempt any SIX question.
[6x5=30]
2.

Compare 8085 and 8086 microprocessors. Let A=454 and B=674, find the content of flag register when SUB B is performed.

3.

Draw timing diagram of MVI B, 354 instruction with proper explanation.

4.

Explain data transfer and arithmetic instruction.

5.

Write codes for following statement by using zero, one and three address instructions. X = (A+B-C)(D+E*F).

6.

Draw and explain arithmetic pipeline.

7.

What is vector processing? Explain Flynn's classification of parallel processing.

8.

Explain the following instructions. a) DAA b) RLC c) INX B

Group C

Attempt any TWO questions

[2x10=20]
9.

Define micro-operation, micro-instruction and micro-program. Write a program to find smallest element among block of data. The length of the block is in the memory location 2310H and block itself starts from memory location 2050H.

10.

Draw the diagram of microprogrammed sequencer for control memory and explain it.

11.

What is interrupt? Explain its types. Explain how matrix multiplication is carried out on a computer supporting vector computation.