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COURSE CODE: CIT 309
COURSE TITLE: COMPUTER ARCHITECTURE
CREDIT UNIT: 3 CREDIT UNITS
TIME: 3 HOURS
INSTRUCTION: ANSWER ANY FIVE QUESTIONS IN ALL
1a. List and discuss the basic functions that a computer can perform. [6 marks]
1b. Write short note on the components of the C. P. U. [6 marks]
1c. Illustrate with simple diagram the basic Instruction fetch and execution cycle. [8 marks]
2a. Define the following:
i. processors instruction.
ii. Instruction.
iii. Data types. [5 marks]
2b. Using the Instruction: ADD, R, Y to explain the following:
i. ADD, R, Y
ii. Y
iii. R
iv. ADD [5 marks]
2c. Explain the elements of a machine instruction. [10 marks]
3a Discuss how the A.L.U is interconnected with the rest of the processor. [8 marks]
3b. Briefly state how the 2s complement operation can be perform on any given integer numbers.[6 marks]
3c. When does the Overflow rule occur? [6 marks]
4ai. Explain what is meant by Micro-operation? [4 marks]
ii. Give 4 examples of shorter subcycles/operation that made up of an instruction cycle.
iii. Fetch execute indirect interrupt [2 marks]
4b. Write the full meaning of the following acronym:
i. MAR.
ii. MBR.
iii. IR.
iv. PC. [2 marks]
4c. Define the following acronym:
i. MAR.
ii. MBR.
iii. IR.
iv. PC.
v. Interrupt.
vi. Timer [12 marks]
5a. Define the following:
i. Dual core processor chip. [3 marks]
ii. L2 cache [3 marks]
iii. System control element (SCE) [2 marks]
iv. Main store control (MSC) [2 marks]
v. Memory card [2 marks]
5b. Write short note on the simultaneous execution of the action: Read word from memory and Increment PC. [6 marks]
5c. Discuss why (PC - MAR) must precede (Memory - MBR) operation in fetch cycle. [2 marks]
6a. List and briefly explain the four (4) types of parallel processor system. [10 marks]
6b. List and describe the two (2) basic tasks of control unit. [6 marks]
6c. Explain the following:
a. Clock. [2 marks]
b. Flags. [2 marks]
7a. Highlight the features and functionality of a multi programming system to accommodate multiple processor. [2 marks]
7b. Write short note on the following: [8 marks]
i. Multithreading
ii. Process switch
iii. Thread
iv. Thread switch
7c. List and briefly explain the four (4) characteristics of Reduced Instruction Set architecture. [10 marks]
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You can now use you matric number to login as your username and password in a lowercase.
https://elearn.nouedu2.net/login/
Note that you are to change your passw...
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