SECTION A (40 MARKS)
- What is a peripheral device? (2 marks)
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- Define the term program . (2 marks)
- State three functions of the Central Processing Unit. (3 marks)
- List the two forms of Data and give a brief explanation of each. (2 mks)
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- James is a scientist. He uses speech method to enter her observations for an experiment into a computer.
- Define an input Device. (1 mark)
- Give an example of an Input device. . (1 mark)
- a) What is the meaning of a “data processing?” (1 mark)
b) Differentiate between data and Information. (2 marks)
- a.) Define the term microcomputers. (1 mark)
b) Give four examples of Microcomputers. (2 marks)
8. Explain three Differences between Data and Information. (3 marks)
9. Classify the following keyboard characters.
a) A, B, C……..Z …….(½ marks)
b) O, 1, 2, 3…..9 ………(½ marks)
c) F1…………..F12 …….(½ marks)
d) Page up, Arrow keys, End, Home ………(½ marks)
e) Ctrl, Shift, Alt ………(½ marks)
f) Del, Insert .(½ marks)
10. i) List Four salient features of a computer. (2 marks)
ii) Explain the meaning of the word Diligence in relation to computers. (1 mark)
11. List Three components found inside the System Unit.
i) (1 mark)
ii) (1 mark)
iii). (1 mark)
12. Name the Three factors that are used to classify computers.
i) (1 mark)
ii) (1 mark)
iii). (1 mark)
13. List and give the functions of computer buses.
i) (1 mark)
ii) (1 mark)
iii). (1 mark)
14. Write the sequence of computers in descending order according to their physical size and processing power. (2 marks)
15. Name three examples of Desktop Computers? (3 marks)
SECTIOB B. Answer question 16 and any other three questions
16. a) Define the terms below.
i) Embeded Computer (1 mark)
ii) Artificial Intelligence (1mark)
iii) Dedicated Computer (1mark)
b) Draw a well labeled diagram of a computer outlining the physical parts. (5 marks)
- Draw a T-Table that outlines any five differences between a computer and a calculator. (5marks)
d) What type of data does a hybrid computer process? (2 marks)
17. a) Distinguish between the following terms.
i) Computer. (2 marks)
ii) Computer System. (2 marks)
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b) List the Advantages of using computers. (6 marks)
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c) Give Five reasons why a mobile phone is also referred to as a computer. (5 marks)
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18. a) Briefly describe each of the following mouse operations.
i) Clicking (2 marks)
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ii) Double Clicking (2 marks)
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iii) Right Clicking (2 marks)
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- Define a Keyboard. (1 mark)
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c) List any four types of keyboards. (4marks)
d) Name four type of ports found at the back of a System Unit. (4marks)
19. a) Differentiate the two types of system unit below:
i) Tower type System unit (2 marks)
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ii) Desktop System unit (2 marks)
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b) Explain four measures that protect computers in the computer Laboratory. (4 marks)
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c) Explain Three measures that protect the user in the computer Laboratory. (3 marks)
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d) Explain the effect of information technology in:
i) Employment (2 marks)
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ii) Environment. (2 marks)
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20. a) The largest most powerful computer is called ………(1mark)
b) Explain the following communication devices
i) Palmtop Computers (2 marks)
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ii) P.C. (2 marks) ……….. ..
c) The speed of a computer is measured in ……….…(2 marks)
d) Name the three key terms that define a computer. (3 marks)
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e) Write the following acronyms in full.
- POST ….. …(1 mark)
- BIOS ……..(1 mark)
- CMOS ……(1 mark)
- PDA ………(1 mark)
v CPU ………(1 mark)
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