Cisy 201:Computer Organization And Architecture Question Paper
Cisy 201:Computer Organization And Architecture
Course:Computer Science
Institution: Kenya Methodist University question papers
Exam Year:2015
KENYA METHODIST UNIVERSITY
END OF 1''st ''TRIMESTER 2015 (PT) EXAMINATION
FACULTY : COMPUTING & INFORMATICS
DEPARTMENT : COMPUTER SCIENCE
UNIT CODE : BBIT 112/CISY 201
UNIT TITLE : COMPUTER ORGANIZATION AND ARCHITECTURE
TIME : 2 HOURS
INSTRUCTIONS:
Answer question One and two others
Question One
Using an illustration, describe the structure of CPU and explain the function of its components.
(8 marks)
Describe the structure of input and output module.
(4 marks)
State four features of bus interconnection structure.
(4 marks)
Briefly describe bus arbitration and explain two types of arbitration schemes.
(5 marks)
Provide a convincing justification for implementation of cache and virtual memory.
(6 marks)
Mention three benefits of RAID systems.
(3 marks)
Question Two
Explain interleaving and bust access mode as memory performance enhancements technique.
(6 marks)
Describe how hard disk is internally structured in terms of cylinder, heads, trucks, and sectors and explain five factors affecting its performance.
(10 marks)
Distinguish between SCSI and IDE Hard disk interface.
(4 marks)
Question Three
Explain the function of input and output system under the following:
Control and timing
CPU communication
Device communication
Data buffering
Error detection
(10 marks)
Using an illustration, describe the non-Neumann structure and mention six Non-Neumann specifications.
(10 marks)
Question Four
The information stored in an n level memory hierarchy, mi to mn, should satisfy the three important properties of inclusion, coherence and locality. Explain the three properties.
(6 marks)
Describe the cache replacement policies and state the suitability of each of the algorithms.
(6 marks)
The most universally acceptable method of classifying processes is Flynn taxonomy. Discuss four categories based on classification.
(8 marks)
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