BIT 2101: COMPUTER ORGANIZATION AND PROGRAMMING

INSTRUCTIONS:

Answer Question One and any other TWO questions

QUESTION ONE (COMPULSORY) (30MKS)

  1. a) Define the following terms as used in computer organization                                     (5 marks) (i)         Bus

(ii)        Utility software

(iii)   Radix (iv)       RISC (v)        CISC

  1. b) Distinguish between the following concepts                                                                  (8 marks)

(i)         Machine language and computer program

(ii)        RAM and cache

(iii)       Sequential and random access

(iv)       Byte and word

  1. c) Using a suitable diagram explain how data moves between CPU and memory when being fetched                                                                                                                              (4 marks)
  2. d) Convert 11100101100 into:

(i)         Octal                                                                                                                     (1 mark) (ii)        Hexadecimal                                                                                                         (1 mark)

  1. e) Convert 27 and 64 into:

(i)         Binary                                                                                                                  (2 marks) (ii)        Octal                                                                                                                    (2 marks)

  1. f) Using three examples explain the relevance of a bus system in a computer                 (7 marks)

 

 

QUESTION TWO (20MKS)

  1. a) Describe the levels that provide the internal structure of a computer system.            (10 marks)

 

  1. b) Logic gates are used to implement ‘logic’ in the flow of signals in a digital circui As a computer designer explain how you would achieve this using gates                          (10 marks)

 

 

 

QUESTION THREE (20MKS)

  1. a) Using a suitable illustration describe the organization of the four major components of a modern computer system                                                                                                (8 marks)
  2. b) Instructions in a computer have operands which have to be accessed from memor Analyze four ways in which addressing aids in this                                                         (8 marks)
  3. c) Explain the internal structure of a magnetic disk                                                           (4 marks)

 

 

QUESTION FOUR (20MKS)

  1. a) Describe the features of a Von Neumann architecture clearly illustrating your answer

(8 marks) b)   Explain the significance of instruction set implementation in a computer system      4 marks) c)   Classify computers according to their characteristics giving examples of computers in each

class                                                                                                                                  (8 marks)

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