QUESTION ONE
a)Explain one limitation of human as information processors. (5 marks)
b)Describe the first electronic computer. (5marks)
c)Describe one wired communication channel. (5 marks)
d)With reference to input devices,explain one pointing device. (5marks)
e)With reference to system development,describe a system analyst. (5 marks)
f)Outline one advantage and one disadvantage of application packages. (4 marks)
g)With reference to computer crime,explain software piracy. (5 marks)
h)State three data processing activities. (6 Marks)

QUESTION TWO.
a)Discuss the activities of data processing systems. (10 Marks)
b0Explain the coding scheme of a computer system. (10 marks)

QUESTION THREE.
a)State five hardware evaluation factors. (5 marks)
b)Because of variation in the characteristics of computer systems,coputers can be classified b;the data manipulated,the purpose for which they are designed,or on the basis of price,size and capability.Explain the data manipulation category. (15 marks)

QUESTION FOUR(OPTIONAL)
a)Explain two telecommunication applications. (10 marks)
b)State five utility or service programs. (10 marks)

QUESTION FIVE(OPTIONAL)
a)There are a variety of controls that can prevent or minimise the effects of computer failure.Explain two of these controls. (10 marks)
b)With reference to system development,describe two characteristics of a good questionnaire. (10 marks)

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