Thursday, February 21, 2019

6th sem: Computer Organization


 6B15CSC:  Computer Organization

Module I
                Basic structure of computer-Types of computers-Functional Units-Basic operational Concepts-Bus structure-Multiprocessors and Multi computers-Data representation-Fixed Point representation and floating Point representation. 

Module II 
                 Register Transfer and Micro operations – Register Transfer language-Register Transfer-Bus and memory Transfer-Three state bus buffers-Memory Transfer-Basic Computer Organization and Design – Instruction Codes – Fetch & Decode Instructions – Register Reference Instructions – Memory Reference Instruction – Input output & Interrupt. 

Module III 
                  Micro Programmed Control – Control Memory – Address sequencing – Central Processing Unit – General Register Organization – Control word – Stack Organization – Register stack - Memory Stack – Reverse Polish notation – Evolution of Arithmetic expressions – Instruction Formats – Addressing modes – Data Transfer and Manipulations – reduced Instruction set computer(RISC) 

Module IV 
                   Input Output Organization – Peripheral Devices – Input/Output Interfaces – Asynchronous Data Transfer – Modes of transfer –Priority Interrupt – Direct Memory Access (DMA) - Input Output Processor - Serial Communications. 65 BOS Computer Science 2014 Kannur University 

Module V 
                   Memory Organization – Hierarchy – Main memory – Auxiliary Memory – Associative Memory – Cache memory – Mapping – Multiprocessors – Characteristics of multiprocessors - Inter connection structures – Inter Processor Arbitration. 

Text Books

1. Computer system Architecture –M.Morris Mano - PHI Pvt Limited 
2. Computer Organization - Carl Hamacher –International Edition References 
1. Computer Organization and Architecture, William Stallings, 7th Edn, Pearson Education. 
2. Computer Architecture & Organization John P Hayes –Mc Graw Hill 

Model Question Paper

 Time: 3 Hrs                                Max. Marks: 40 

SECTION A 

1. One word answer (8 x 0.5 = 4 marks)

 a) The type of the addressing mode in which the effective address is equal to the address part of the instruction is ……………….. 
b) The register that hold the address of the stack is…….. 
c) The data register is some times called…………….. 
d) The transfer of information from a memory word to outside environment is ………… 
e) The third state of three state bus buffer is …………… 
f) Which condition can be detected by observing the carry into the sign bit position and the carry out sign bit position……….. 
g) If the most significance digit of mantissa of floating point number is non zero then the number is said to be …………. 
h) The register that keeps track of address of the instruction is to be executed is called ………… 

SECTION B

 Write short notes on ANY SEVEN of the following questions (7 x 2 = 14 marks) 

2 Explain the relative address mode 
3 What are the difference between the multiprocessors and multi computers? 
4 Explain floating point representatives. 
5 What is a register transfer? 
6 What is an effective address? 
7 Write three memory references instructions. 
8 What is an interrupt cycle? 
9 What are the major phases of operation of control unit when go through an instruction cycle? 
10 What is RISC? 
11 Explain base register address Mode. 

SECTION C 

Answer ANY FOUR of the following questions (4 x 3 = 12 marks) 

12. Explain base register address mode 
13. Explain different Auxiliary Memory types 
14. Explain 2’s complement addition and 2’s complement subtraction. 
15. Explain address sequencing 
16. What is the general register organization? 
17. Explain the register indirect mode. 

SECTION D 

Write an essay on ANY TWO of the following questions (2 x 5 = 10 marks) 

18. Explain the fixed point and floating point representation 
19. Explain the direct memory access in detail. 
20. Explain different addressing modes. 
21. Write a detailed note on instruction cycle describing the various steps involved


Previous Question Paper:  










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