D 10590 (Pages : 2) வாரி? அவைத்‌ வைக

FIFTH SEMESTER U.G. DEGREE EXAMINATION, NOVEMBER 2021
(CBCSS—UG)
Computer Science
BCS 5B 07—COMPUTER ORGANIZATION AND ARCHITECTURE
(2019 Admissions)
Time : Two Hours Maximum : 60 Marks
Section A

Answer at least eight questions.
Each question carries 3 marks.
All questions can be attended.

Overall Ceiling 24.

1. How do you represent positive and negative logic ?

2. What are the characteristics of an AND gate ? Explain the operation of an AND gate with logic
diagram and Truth Table.

3. Draw the circuit diagram to show how a NAND gate can be used as a NOT gate.
4. Differentiate between the combinational circuits and sequential circuits.
5. Differentiate between an SR flip-flop and an SR latch.
6. What is a shift register ?
7. Explain various phases in the instruction cycle of a basic computer.
8. What is control memory ?
9. Describe in detail cache memory.
10. List out various data transfer modes in IO module.
11. Explain strobe and handshaking in detail.
12. Define Hit ratio.
(8 x 3 = 24 marks)

Turn over

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