Title EC206 June 2017 Qp SOlved - ktu qbank.pdf ✅

B B4D381 Pages: 2 Page 1 of 2 Reg. No. _______________ Name:______________________ APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY FOURTH SEMESTER B.TECH DEGREE EXAMINATION, JUNE 2017 Course Code: EC206 Course Name: COMPUTER ORGANISATION (EC) Max. Marks: 100 Duration: 3 Hours PART A Question No.1 is compulsory. Answer either Question No. 2 or Question No. 3. 1. (a) Illustrate the basic functional units of a digital computer and list the important functions of each unit. (4) (b) Explain briefly the principle of carry look-ahead addition. Draw the circuit diagram of 4 bit carry look-ahead adder with proper design. (7) (c) With the help of suitable examples, differentiate between R-type and I-type instructions in MIPS machine language. (4) 2. (a) Illustrate the IEEE standard format for single precision floating point numbers.(2) (b) Compute the delay of a 64-bit carry prefix adder, assuming that each 2-input gate delay is 200 ps. (4) (c) With a suitable circuit arrangement, explain n-bit binary multiplication. (6) (d) Design and implement a 4-bit equality comparator using gates. (3) 3. (a) Illustrate the format of J-type instructions in MIPS machine language. (2) (b) Write short notes on (i) MIPS register set (ii) Byte addressable memory. (7) (c) Assuming that the opcode ‘addi’ is represented by 810, register‘add’ operation is represented bythe function code 3210, and the registers s0 to s7 are represented by 1610 to 2310 in MIPS machine language, (i) Translate the following machine language code into MIPS assembly language: 0x2237FFF3 (3) (ii) Translate the following MIPS assembly code to MIPS machine language code in hexadecimal form: add $s0, $s4, $s5 (3) PART B Question No.4 is compulsory. Answer either Question No. 5 or Question No. 6. 4. (a) With examples for each, explain the addressing modes available in MIPS. (7.5) For More Visit : KtuQbank.com
B B4D381 Pages: 2 Page 2 of 2 (b) What is micro architecture? List the state elements of MIPS processor and their functions. (5) (c) Write a short note on performance analysis of computer systems. (2.5) 5. (a) With an illustration, briefly explain MIPS memory map. (5) (b) With a suitable diagram, explain the steps involved in executing a high level language program. (6) (c) With an example, briefly explain pseudo instructions in MIPS. (4) 6. (a) Differentiate between the three micro architectures for MIPS processor architecture. (3) (b) Derive the simplified expression for cycle time in a single cycle MIPS processor. If the cycle time in a single cycle processor is 1000 ps, compute the total execution time (in seconds) for a program with 10 lakh instructions. (7) (c) List the three main weaknesses of a single cycle processor. How are they eliminated in a multi cycle processor? (5) PART C Question No. 7 is compulsory. Answer either Question No. 8 or Question No. 9. 7. (a) With the help of a diagram, explain the concept of memory hierarchy. (4) (b) Write short notes on (i) SCSI (ii) USB (6) (c) With a diagram, explain address translation in virtual memory. (7) (d) Differentiate between the two different write policies in cache memory. (3) 8. (a) Explain in detail, the different modes of data transfer between the processor/memory and I/O devices in a computer system. (10) (b) What is a port? Differentiate between serial and parallel ports. (4) (c) With a circuit diagram, explain the working of a DRAM cell. (6) 9. (a) Briefly explain the concept of cache memory. What is hit rate? (3) (b) Discuss in detail, any two mapping methods in cache memory. (12) (c) Write short notes on (i) Replacement algorithms (ii) TLB (5) *** For More Visit : KtuQbank.com
FOURTH SEMESTER .TECH DEGREE EXAMINATION JUNE 2017 EC206 COMPUTER ORGANISATION PART A 1 (a) Illustrate the basic functional units of a computer and list the important functions of each unit. The computer system is divided into three separate units for its operation. They are 1) arithmetic logical unit 2) control unit. 3) central processing unit. 1.Arithmetic Logical Unit Logical Unit :After you enter data through the input device it is stored in the primary storage unit. The actual processing of the data and instruction are performed by Arithmetic Logical Unit. The major operations performed by the ALU are addition, subtraction, multiplication, division, logic and comparison. Data is transferred to ALU from storage unit when required. After processing the output is returned back to storage unit for further processing or getting stored. 1. Control Unit (CU) The next component of computer is the Control Unit, which acts like the supervisor seeing that things are done in proper fashion. Control Unit is responsible for co ordinating various operations using time signal. The control unit determines the sequence in which computer programs and instructions are executed. Things like processing of programs stored in the main memory, interpretation of the instructions and issuing of signals for For More Visit : KtuQbank.com