GTU Computer Engineering (Semester 4)
Computer Organization
May 2015
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary


1 (a) Explain how complement number system is useful in computer system. Discuss any one complement number system with example.
7 M
1 (b) Define RTL. Explain how register transfer takes place in basic computer system.
7 M

2 (a) What is a micro operation? List and explain its categories.
7 M
Answer any one question from Q2 (b) & Q2 (c)
2 (b) Draw and explain basic computer instruction formats.
7 M
2 (c) Draw the block diagram of control unit.
7 M

Answer any two question from Q3 (a), (b) & Q3 (c), (d)
3 (a) Write an assembly language program to add 10 numbers from memory.
7 M
3 (b) What is register stack? Explain push and pop micro-operations.
7 M
3 (c) Explain pipelining technique. Draw the general structure of four segment pipeline.
7 M
3 (d) Draw flow chart for multiplication of two floating point numbers.
7 M

Answer any two question from Q4 (a), (b) & Q4 (c), (b)
4 (a) How addressing mode is significant for referring memory? List and explain types of addressing modes.
7 M
4 (b) Explain RISC. List its characteristics.
7 M
4 (c) Explain asynchronous data transfer using timing diagrams.
7 M
4 (d) How main memory is useful in computer system? Explain the memory address map of RAM and ROM.
7 M

Answer any two question from Q5(a), (b) & Q5 (c), (d)
5 (a) Attempt Any Four: -

Memory reference instructions
4 M
5 (b) Explain instruction formats with its types.
3 M
5 (c) Daisy chain arbitration.
4 M
5 (d) Instruction cycle
3 M
5 (e) Passes of an assembler.
4 M
5 (f) Content Addressable Memory.
3 M



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