GTU previous years question papers – BE- Sem-III -Computer Organization and Architecture -December 2010

GTU previous years question papers


B.E. Sem-III Regular / Remedial Examination December 2010

Subject code: 130704

Subject Name: Computer Organization and Architecture


  1. Attempt all questions.
  2. Make suitable assumptions wherever necessary.
  3. Figures to the right indicate full marks.

Q.1       Explain the Common Bus System with its diagram.

(b) Discuss the phases of Instruction Cycle with flowchart.

Q.2 What is the difference between microprocessor and micro program? Is it possible to design a microprocessor without a micro program? Are all micro programmed computers also microprocessors?

(b) Define micro operation, micro instruction, micro program and micro code in short.

Derive the control gate structure associated with the Address Register (AR) in the basic computer.

Explain the following instructions: SPA, SNA, SZA, SZE.

Q.3 Explain the working of Second Pass Assembler with its flowchart.

(b) Write the program to multiply two positive numbers. by a repeated addition  method. For ex., to multiply 5 x 4 , the program evaluates the product by adding 5 four times, or 5+5+5+5.


(a) Give the basic computer instruction format and explain Memory reference, Register reference and Input-output instructions.

Write the program to logically OR the two numbers without using “OR” instruction.

 (b) Explain the different addressing modes with suitable examples.

Explain the basic working principle of the Control Unit of basic computer using diagram.


Q.4 Explain the design of Accumulator logic.

(b) List all the three address, two address, one address, instructions with its examples.

zero address and RISC

Q. (a) Explain the Booth Multiplication Algorithm in detail.

(b) Explain the Instruction Pipelining with example.


Q.5 (a) Explain the procedure for addition and subtraction with signed-magnitude data 07 with the help of flowchart.

(b) Draw the diagram of Micro programmed sequencer for a control memory and 07 explain it.


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