1. (a) Give any two measures taken to ensure that computers in a laboratory are safe. (02 marks)
(b) Explain the term troubleshooting as used in computers. (01 mark)
(c) State two ways in which one can troubleshoot a computer that has failed to start. (02 marks)
2. Give one reason why a school director would purchase the following equipment for a computer laboratory.
(a) Blower. (01 mark)
(b) Anti-glare filter screens. (02 marks)
(c) Air conditioner. (02 marks)
3. (a) Differentiate between Computer servicing and computer repair (02 marks)
b) Write one reason for having the following items in the computer laboratory
i) Woolen carpet (01 mark)
ii) Blower (01 mark)
iii) CCTV cameras. (01 mark)
4.(a) Explain the Importance of servicing and maintenance of computers. (02 marks)
(b) Suggest any three activities involved in servicing and maintenance of computers. (03 marks)
5. (a) Name one tool used to remove dust from a computer. (01 mark)
(b) Give reasons why one would require the following in the computer laboratory;
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1.a)Burglar proofing of doors and windows
Use of cables to lock the rquipments to the desk,cabinet and floor
b)Troubleshooting is a form of problem solving,often applied to repair failed products or processes on a machine or a system.
c)Check the power cords on the computer and monitor
Listen for beeps during the boot process
2.a)A blower removes dust that may have entered inside the computer.
b)Anti-glare filter screens regulate excess light from monitors
c)Air conditioner helps in monitoring and maintaining temperature,air distribution and humidity in a computer laboratory.
Cools and controls the humidity and purity of the air circulating in space
3.a)Computer servicing is the caring for a computer to keep it in good working condition while Computer repair is the process of identifying,troubleshooting and resolving problems and issues in a faulty computer.
b)i)A woolen carpet helps to trap dust entering the computer laboratory
ii)A blower helps to blow dust that may have entered inside the computer
iii) CCTV cameras help to monitor,record and deter suspicious activities in the school
4.a)To enable a computer serve for a long time
To enable a computer operate at its designed capacity
To reduce associated costs for repairing and risks involved in computer breakdown
b)Repairing and replacing damaged parts
Installing power stabilizers and surge protectors
Scanning storage devices
Disk cleaning
5.a)Portable vaccum
Cotton swabs
Isopropyl alcohol
b)i)Uninterruptible Power Supply prevents loss of data
It prevents damage from power loss and common electric occurences
It prevents connectivity issues
ii)LCD Projector allows interaction between students and teachers
It offers ways of teaching students in different ways