Pachavellam UG-PG

D 10557

D 10557

FIFTH SEMESTER U.G. DEGREE EXAMINATION, NOVEMBER 2021

(CBCSS-UG)

B.C.A.

BCA 5B 07-COMPUTER ORGANISATION AND ARCHITECTURE

(2019 Admissions)

Time: Two Hours                                                                                                                                                                  Maximum: 60 Marks

Section A (Short Answer Type Questions)

Answer at least eight questions.

Each question carries 3 marks.

All questions can be attended.

Overall Ceiling 24.

1. Define universal gates.

2. Define decoders.

3. Define multiplexer.

4. Define cache memory.

5. Define accumulator.

6. Define handshaking.

7. What is edge triggering?

8. Define multiprocessing.

9. Define I/O bus.

10. What is interrupt?

11. Define micro-operation.

12. Define register.

                                                                                                                                            (8 x 3 = 24 marks)

Section B (Short Essay Type Questions)

Answer at least five questions.

Each question carries 5 marks. All questions can be attended.

Overall Ceiling 25.

13. Explain half and full adder in detail.

14. What is write-through method in cache organization.

15. Write a note on data transfer instructions.

16. Write a short note on direct mapping.                                                                                                                             

17. Differentiate between synchronous and asynchronous data transfer.

18. Write a note on SR flip flop.

19. What you meant by I/O controllers?

(5 x 5 = 25 marks)

Section C (Essay Type Questions)

Answer any one question.

The question carries 11 marks.

20. Define addressing modes. Give the details of different addressing modes.

21. Explain different modes data transfer to and from peripherals.

(1 x 11 = 11 marks)