JNTU B.Tech II Semester Examinations, COMPUTER ORGANIZATION, Apr/May 2008

JNTU B.Tech II Semester Examinations, COMPUTER ORGANIZATION, Apr/May 2008

(Mechatronics)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

SET-I

1. (a) Explain the terms compiler, linker, assembler, loader and describe how a C

program or any other high level language program is executed in a system. Indicate entire process with a figure.

(b) Distinguish between high level and low level languages?. What are the requirements for a good programming language? [16]

 

2. Design a circuit to increment, decrement, complement and clear a 4 bit register using RS flip-flops. Explain the control logic. [16]

 

3. (a) How do we reduce number of microinstructions. What are micro-subroutines? [8]

(b) Explain nanoinstructions and nanometry. Why do we need them? [8]

 

4. (a) How many bits are needed to store the result addition, subtraction, multiplication and division of two n-bit unsigned numbers. Prove. [8]

(b) What is overflow and underflow? What is the reason? If the computer is considered as infinite system do we still have these problems. [8]

 

5. (a) What is Locality of Reference? Explain [6]

(b) What is the need of Replacement Algorithms for a Cache Memory? Explain any two Cache Replacement Strategies. [10]

 

6. (a) What is Direct Memory Access? Explain the working of DMA.

(b) What are the different kinds of DMA transfers? Explain.

(c) What are the advantages of using DMA transfers? [8+4+4]

 

7. (a) What is meant by instruction pipeline? Explain four segment Instruction Pipeline.

(b) Give the timing diagram of instruction pipeline. [8+8]

 

8. (a) Differentiate bus based multiprocessors and switched multiprocessors.

(b) Explain the working of 8 x 8 Omega Switching network. [8+8]

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