Ics2101:Computer Organisation Question Paper
Ics2101:Computer Organisation
Course:Bachelor Of Crop Protection
Institution: Meru University Of Science And Technology question papers
Exam Year:2013
QUESTION ONE – 30 MARKS
a. Explain the use of the following registers used in computer organization. (10 Marks) i. Memory register ii. Memory buffer register iii. Memory address register iv. Sequence control register v. Status register
b. Using an appropriate explain the functions of the central processing unit and its constituent components. (6 Marks) c. Outline two types of buses used in computers (4 Marks) d. Using examples explain the function of two buses. (4 Marks) e. Explain the fetch execute code or machine cycle. (6 Marks)
QUESTION TWO – 20 MARKS
a. Outline and explain any five addressing modes (10 Marks) i. Immediate ii. Direct iii. Indirect iv. Register v. Register indirect
b. Explain the term gate. (2 Marks) c. Explain the following gates: (8 Marks) i. AND ii. OR iii. NOT Gate or Inverter
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QUESTION THREE – 20 MARKS
a. Explain the use of the following family of logic gates. (10 Marks) i. Diode logic (DR) ii. Resistor transistor logic (RTL) iii. Diode transistor logic (DTL) iv. Transistors transistor logic (TTL) v. Emitter coupled logic. (ECL)
b. Using an appropriate diagram, explain the ISA (Introduction Set Register of a computer. (5 Marks) c. Explain the following terms used in computer organization: (5 Marks) i. Superscalar processor ii. Machine cycle iii. Parallelism iv. Pipelining v. RISC computers
QUESTION FOUR – 20 MARKS
a. Define the term instruction set architecture. (3 Marks) b. Explain meaning of the following terms: (9 Marks) i. stack ii. accumulator iii. general purpose register (GPR)
c. Explain three differences between CISC and distinguish between: i. RISC (6 Marks) ii. Explain the importance of cache memory. (2 Marks)
QUESTION FIVE – 20 MARKS
a. An ISA is the part of the processor that is visible to the programmer or compiler writer. Clearly outline and explain the five categories of the ISA of a processor. (5 Marks) b. There are three common types of ISAs. Outline and briefly explain them. (3 Marks) c. Using the following equation: A = B + C
Write the assembly code of the above equation using the three architectures in (b) above. (6 Marks) d. For each of the three types of ISAs explain one advantage and one disadvantage. (6Marks)
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