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Computer Organization : Question Paper Jun 2014 - Computer Science Engg. (Semester 4) | Visveswaraya Technological University (VTU)
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Computer Organization - Jun 2014

Computer Science Engg. (Semester 4)

TOTAL MARKS: 100
TOTAL TIME: 3 HOURS
(1) Question 1 is compulsory.
(2) Attempt any four from the remaining questions.
(3) Assume data wherever required.
(4) Figures to the right indicate full marks.
1 (a) Draw the connection between processor and memory and mention the functions of each component in the connection.(8 marks) 1 (b) Write the difference between RISC and CISC processors.(4 marks) 1 (c) A program contain 1000 instruction Out of that 25% instructions requires 4 clock cycles. 40% instructions requires 5 clock and remaining 3 clock cycles for execution. Find the total time required to execute the program running in a 1GHz machine.(5 marks) 1 (d) Add +5 and -9 2's compliment method.(3 marks) 2 (a) Explain immediate, indirect and indexed addressing modes.(8 marks) 2 (b) Explain different rotate instructions.(6 marks) 2 (c) Write ALP program to copy 'N' numbers from array 'A' to array 'B' using direct addresses. (Assume A and B are the starting memory locations of a array).(6 marks) 3 (a) Explain the following terms:
i) Interrupt service routine
ii) Interrupt latency
iii) Interrupt disabling.
(6 marks)
3 (b) With a diagram, explain daisy chaining technique.(6 marks) 3 (c) What you mean by bus arbitration? Briefly explain different bus arbitration techniques.(8 marks) 4 (a) With a block diagram, explain how the printer is interfaced to processor.(8 marks) 4 (b) Explain the architecture and addressing scheme of USB.(8 marks) 4 (c) Define two types of SCSI controller.(4 marks) 5 (a) Explain direct memory mapping technique.(6 marks) 5 (b) What is virtual memory? With a diagram, explain how virtual memory address is translated.(8 marks) 5 (c) Explain the working of 16 megabyte DRAM chip configured as 1M×16 memory chip.(6 marks) 6 (a) Design 4 bit carry look ahead logic and explain how it is faster them 4 bit ripple adder.(8 marks) 6 (b) Multiple 14×-8 using Booth's algorithm.(6 marks) 6 (c) Explain normalization, access-exponent and special values with respect to IEEE floating point representation.(6 marks) 7 (a) With a diagram, explain typical single bus processor data path.(8 marks) 7 (b) Explain with neat diagram, the basic organization of a microprogrammed control unit.(8 marks) 7 (c) Differentials hardwired and microprogrammed control unit.(4 marks) 8 (a) Define and discuss Amdahl's law.(6 marks) 8 (b) With a diagram, explain a shared memory multiprocessor architecture.(8 marks) 8 (c) What is hardware multithreading? Explain the different approaches to hardware multithreading.(6 marks)

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