CIT309 : COMPUTER ARCHITECTURE (2014)
NATIONAL OPEN UNIVERSITY OF NIGERIA
14/16 AHMADU BELLO WAY, VICTORIA ISLAND, LAGOS
SCHOOL OF SCIENCE AND TECHNOLOGY
MARCH/APRIL 2014 EXAMINATION
COURSE CODE: CIT 309
COURSE TITLE: COMPUTER ARCHITECTURE
TIME ALLOWED: 3 HOURS
INSTRUCTION: ANSWER ANY FOUR QUESTIONS IN ALL
1a. Explain the following:
i. Clock. [4
marks]
ii. Flags [4.5
marks]
1b. List and briefly explain the four (4) characteristics of Reduced Instruction Set architecture. [9
marks]
2a. Give 4 examples of shorter subcycles/operation that made up of instruction cycle. [5
marks]
2b. List and briefly explain the four (4) types of parallel processor system. [17.5 marks]
3a. Write short note on the simultaneous execution of the action: Read word from memory and Increment PC. [71/2 marks]
3b. Using the Instruction: ADD, R, Y to explain the following:
i. ADD, R, Y
ii. Y
iii. R [10
marks]
4a. Highlight the features and functionality of a multi programming system to accommodate multiple processor. [71/2 marks]
4b. Define the following:
i. Data types. [2 marks]
ii. processors instruction. [4 marks]
iii. Instruction. [4 marks]
5a. List and discuss four (4) basic functions that a computer can perform. [7.5 marks]
5b. Define the following:
i. Dual core processor chip. [2 marks]
ii. L2 cache. [2 marks]
iii. System control element (SCE). [2 marks]
iv. Main store control (MSC). [2 marks]
v. Memory card. [2 marks]
6a. Explain what is meant by Micro-operation? [71/2marks]
6b. When does the Overflow rule occur? [10 marks]
For the 2015 – till date past questions for this course CLICK HERE
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