CIT3 309 OCTOBER/NOVEMBER 2013 Examination

                                                                    

                                                 National Open University of Nigeria

                                      14-16 Ahmadu Bello Way, Victoria Island Lagos 

                                               School of science and Technology

                                       OCTOBER/NOVEMBER 2013 Examination 

COURSE CODE: CIT3 309

   COURSE TITTLE: COMPUTER ARCHITECTURE

 TIME ALLOWED: 2hrs 30MIN

    Instructions: ANSWER ANY 4 QUESTIONS 

1a. what is processors instruction set

b. write short note on the 4 register involved in the fetch cycles

2a. write a short note to differentiate between the operation code and next instruction reference

b. what is instruction address calculation (AC)

3a. write short note on incremeter/decremeter address latch over the ALU

b. define gates and list the 4 basic gates used in digital logic 

5a. write down the steps to perform : ADD B,A.

b state the 4 characteristics of reduced instruction set architectures

6a. what is interrupt control

b. state and write short note on the 3 micro-operations that can be performed within the time of a single time   unit.

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