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COURSE CODE: CIT 309
COURSE TITLE: Computer Architecture
TIME ALLOWED: 2 Hours
INSTRUCTIONS: Answer any Four (4) Questions
Q1a. Illustrate with simple diagram the basic instruction fetch and execution cycle. (10.5marks)
b. Write short note on the three components of the C.P.U (7marks)
Q2a. When does the Overflow rule occur? (7.5marks)
b. Explain the (4) elements of a machine instruction (10marks)
Q3a. Give (4) examples of shorter sub cycle/operation that made up of an instruction cycle (7.5marks)
b. Write short note on the following; (10marks)
i. Multithreading
ii. Process switch
iii. Thread
iv. Thread switch
Q4a. List and briefly explain the four (4) characteristics of Reduced Instruction Set architecture. (10marks)
b. Differentiate between the Structure and Function of a computer system (7.5marks)
Q5a. Discuss why (PC-MAR) must precede (Memory-MBR) operation in fetch cycle (5.5marks)
b. State the (4) characteristics of reduced instruction set architectures. (12marks)
Q6a. List and describe the two (2) basic tasks of control unit (7marks)
b. Copy and complete the table below. (10.5marks)
A |
B |
→ A |
→ B |
A.B |
A+B |
→ (A.B) |
→ (A+B) |
(A XOR B) |
0 |
0 |
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0 |
1 |
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1 |
0 |
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1 |
1 |
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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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