KASNEB DICT LEVEL II TUESDAY: 22 MAY 2018 COMPUTER SUPPORT AND MAINTENANCE Answer all Questions QUESTION ONE (a) Define the following terms as used in computing: Computer support (2 marks) Computer maintenance (2 marks) (b) John Busuti, a technician at Mafunzo College was asked to replace a fault optical drive. Required Outline five components or tools necessary for the task (5 marks) (c) (i) Describe the term "incremental backup" as used in computing. (2 marks) (ii) Highlight three advantages of incremental backup. (3 marks) (d) Joyce Maleki suspects that her desktop computer has overheating problems Required (i) Identify two indicators of an overheating computer. (2 marks) (ii) Suggest four possible causes of overheating in a computer. (4 marks) QUESTION TWO (a...
DICT LEVEL II COMPUTER SUPPORT AND MAINTENANCE – MAY 2017 TUESDAY: 23 MAY 2017 Answer ALL questions. Marks allocated to each question are shown at the end of the question QUESTION ONE (a) Describe each of the following computer advanced management techniques: (i) Hibernate. (2 marks) (ii) Allow wake timers. (2 marks) (iii) Allow hybrid sleep. (2 marks) (b) Explain the following electronic components as used in computer systems ...
What is an ICT system? Is a set up consisting of hardware, software, data and the people who use them; includes communication technology such as internet. ICT and computers is not the same. Areas of ICT systems: Offices Shops Medicines Aircraft Factories Communication Types if ICT systems Information systems – managing data and information Control systems – control machines, robots Communication systems –transporting data Impact of ICT in society Faster communication speed Lower communication costs Paperless environment Borderless communication Reliable mode of communication Effective sharing of information Negative effects of ICT Fraud Hacking Pornography Identity theft Health problems A computer may harm users if they use it for long hours frequently. Users are also exposed to bad posture, eyestrain, physical and mental stress. In order to solve health problems, an ergonomic environment can be intro...
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