1a) Define the term computer laboratory
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1a) Define the term computer laboratory. ……………………………………………………………………………………………… ……………………………………………………………………………………………… b) Give three factors to consider when preparing a computer laboratory. ……………………………………………………………………………………………… ……………………………………………………………………………………………… ……………………………………………………………………………………………… c) Why must there be rules and precautions in the computer laboratory? Give three reasons. ……………………………………………………………………………………………… ……………………………………………………………………………………………… ……………………………………………………………………………………………… d) Write down any three factors to be considered when buying computers. ……………………………………………………………………………………………… ……………………………………………………………………………………………… ……………………………………………………………………………………………… 2a) Define the term computer literacy. ……………………………………………………………………………………………… ……………………………………………………………………………………………… b) List down any five rules and regulations to follow while in the computer laboratory. ……………………………………………………………………………………………… ……………………………………………………………………………………………… ……………………………………………………………………………………………… ……………………………………………………………………………………………… ……………………………………………………………………………………………… c) Write the following abbreviations in full. UPS ……………………………………………………………………………………………… IT ……………………………………………………………………………………………… ICT ……………………………………………………………………………………………… CAL ……………………………………………………………………………………………… 3a) Explain any three advantages and two disadvantages of automated production. Advantages ……………………………………………………………………………………………… ……………………………………………………………………………………………… ……………………………………………………………………………………………… Disadvantages ……………………………………………………………………………………………… ……………………………………………………………………………………………… b) State any three advantages and two disadvantages of using computers in education. Advantages ……………………………………………………………………………………………… ……………………………………………………………………………………………… ……………………………………………………………………………………………… Disadvantages ……………………………………………………………………………………………… ……………………………………………………………………………………………… 4) The following devices are needed to ensure safety of computers and for a good computer laboratory environment. For each, name the device and give one importance. Device A Name: …………………………………………………………….. Importance: …………………………………………………………………..... Device B Name: …………………………………………………………….. Importance: …………………………………………………………………..... Device C Name: …………………………………………………………….. Importance: …………………………………………………………………..... Device D Name: …………………………………………………….. Importance: ….………………………………………………………..... Device E Name: ………………………………………………………….. Importance: ….…………………………………………………………........ 5) A voluntary labeling programme called Energy Star advocates for protection of the environment through green computing. a) What is green computing? ……………………………………………………………………………………………… ……………………………………………………………………………………………… b) Suggest two practices that promote green computing. ……………………………………………………………………………………………… ……………………………………………………………………………………………… c) What are the benefits of green computing? Give any two. ……………………………………………………………………………………………… ……………………………………………………………………………………………… 6) Suggest three areas of increased employment and two areas of increased unemployment under ICTs. a) Increased employment ……………………………………………………………………………………………… ……………………………………………………………………………………………… ……………………………………………………………………………………………… b) Increased unemployment ……………………………………………………………………………………………… ……………………………………………………………………………………………… 7a) When computers freeze or hang, the computers will not recognise any input from the users. Outline any three reasons for computer freezes. ……………………………………………………………………………………………… ……………………………………………………………………………………………… ……………………………………………………………………………………………… b) State any two indicators of good system (computer) performance. ……………………………………………………………………………………………… ……………………………………………………………………………………………… 8a) Define the following terms: i) Computer troubleshooting ……………………………………………………………………………………………… ……………………………………………………………………………………………… ii) Computer repair ……………………………………………………………………………………………… ……………………………………………………………………………………………… b) There are several reasons why you may want to uninstall software from your computer. Mention any three reasons. ……………………………………………………………………………………………… ……………………………………………………………………………………………… ……………………………………………………………………………………………… 9) Use the list of terms below to complete the gaps that follow. Warning message Uninstalling Software System performance Software installation Error message a) ……………………………………..alerts users of a condition that might cause a problem. b) ……………………………………..characterizes the amount of useful work completed by a computer system in relation to time and resources used. c) ……………………………………..alerts users of a problem that has already occurred. d) ……………………………………..refers to removing an application from system file. e) ……………………………………..is the act of making a program ready for execution. 10a) Mention any three validation techniques that can be done on data. ……………………………………………………………………………………………… ……………………………………………………………………………………………… ……………………………………………………………………………………………… b) Give two examples of verification techniques that can be done on data. ……………………………………………………………………………………………… ……………………………………………………………………………………………… 11a) Define the following terms i) Electronic storefront ……………………………………………………………………………………………… ……………………………………………………………………………………………… ii) Shopping cart ……………………………………………………………………………………………… ……………………………………………………………………………………………… b) State any two benefits of electronic commerce ……………………………………………………………………………………………… ……………………………………………………………………………………………… c) Suggest any one limitation of electronic commerce ……………………………………………………………………………………………… 12a) What is an expert system? ……………………………………………………………………………………………… ……………………………………………………………………………………………… b) Where are expert systems used? Give any two areas. ……………………………………………………………………………………………… ……………………………………………………………………………………………… c) Mention any two limitations of expert systems. ……………………………………………………………………………………………… ……………………………………………………………………………………………… 13a) Define the term file manager ……………………………………………………………………………………………… b) State four functions of a file manager ……………………………………………………………………………………………… ……………………………………………………………………………………………… ……………………………………………………………………………………………… ……………………………………………………………………………………………… 14a) What is computer literacy? ……………………………………………………………………………………………… ……………………………………………………………………………………………… b) Mention two precautions for each condition that would be taken in the computer room incase: i) The humidity falls below normal for prolonged periods due to weather change ……………………………………………………………………………………………… ……………………………………………………………………………………………… ii) Users complain of backache after long periods of computer use ……………………………………………………………………………………………… ……………………………………………………………………………………………… 15a) Outline one advantage of softcopy output ……………………………………………………………………………………………… b) State one disadvantage of softcopy output ……………………………………………………………………………………………… c) Give one advantage of hardcopy output ……………………………………………………………………………………………… b) List down two disadvantages of hardcopy output ……………………………………………………………………………………………… 16a) Suggest any three factors you would consider before buying a printer. ……………………………………………………………………………………………… ……………………………………………………………………………………………… b) Write down any two factors you would consider before buying a storage device. ……………………………………………………………………………………………… ……………………………………………………………………………………………… 17a) State any one feature of a graphical user interface. ……………………………………………………………………………………………… ……………………………………………………………………………………………… b) Mention one advantage and one disadvantage of a command line interface Advantage ……………………………………………………………………………………………… Disadvantage ……………………………………………………………………………………………… c) Explain one advantage and one disadvantage of a graphical user interface Advantage ……………………………………………………………………………………………… Disadvantage ……………………………………………………………………………………………… 18a) Write the following abbreviations in full i) PIXEL ……………………………………………………………………………………………… ii) BIT ……………………………………………………………………………………………… iii) NLQ ……………………………………………………………………………………………… b) “The greater your computer’s memory capacity the better” Give two reasons ……………………………………………………………………………………………… ……………………………………………………………………………………………… 19a) Differentiate between Peer-to-peer network model and Client server network model ……………………………………………………………………………………………… ……………………………………………………………………………………………… b) State one advantage and one disadvantage of a peer to peer network model Advantage ……………………………………………………………………………………………… Disadvantage ……………………………………………………………………………………………… b) Mention one advantage and one disadvantage of a client server network model Advantage ……………………………………………………………………………………………… Disadvantage ……………………………………………………………………………………………… 20a) What is cloud computing? ……………………………………………………………………………………………… ……………………………………………………………………………………………… b) List down two advantages of cloud computing ……………………………………………………………………………………………… ……………………………………………………………………………………………… c) Give two disadvantages of cloud computing ……………………………………………………………………………………………… ……………………………………………………………………………………………… END
