Computer Organization and Architecture - Dec 2012

Computer Engineering (Semester 4)

TOTAL MARKS: 80
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any three from the remaining questions.
(3) Assume data if required.
(4) Figures to the right indicate full marks. 1 (a) Explain Von Neumann Architecture.(6 marks) 1 (b) Compare Computer Organization and Computer Architecture with example. (4 marks) 1 (c) Explain different Mapping techniques of Cache Memory.(10 marks) 2 (a) Compare and contrast DMA, programmed Input/Output and Interrupt driven Input/Output. (10 marks) 2 (b) Compare SRAM and DRAM.(5 marks) 2 (c) Compare RISC and CISC.(5 marks) 3 (a) Explain design of control unit with respect to Softwired and Hardwired approach.(10 marks) 3 (b) Explain IEEE-754 standard formats to represent floating point numbers.(10 marks) 4 (a) What is cache coherency? Explain different protocols to solve cache coherency. (10 marks) 4 (b) Explain Non-Restoring division algorithm for performing 19/4.(10 marks) 5 (a) Explain multiplication of signed numbers -13^*-6 using Booth's algorithm.(10 marks) 5 (b) What is virtual memory? Explain Role of paging and segmentation in virtual memory.(10 marks) 6 (a) (10 marks) 6 (b) What is the difference between pipelining and parallelism? Show that k-stage 10 Pipelined processor has k-times speed up as compared to non-pipelined system.(10 marks)

Write short notes on (any four)

7 (a) Wave Front arrays(5 marks) 7 (b) RAID Memory(5 marks) 7 (c) Static and dynamic data flow computers(5 marks) 7 (d) Systolic Arrays(5 marks) 7 (e) I/O processor and I/O channel(5 marks) 7 (f) Characteristics of two level memories(5 marks)