TUESDAY: 5 April 2022. Morning paper.                                                                                           Time Allowed: 3 hours.
Answer any FIVE questions. ALL questions carry equal marks. Do NOT write anything on this paper.


  1. File attributes are the conditions that a user can attach to a file to prevent unauthorised access or to protect the file
    from accidental erasure. Describe three file attributes. (6 marks)
  2. Describe each of the following primary memories in a computer system:
    RAM. (2 marks)
    ROM. (2 marks)
  3. Explain four ways of identifying an illegal copy of an operating system. (4 marks)
  4. Highlight two reasons for storing files into directories and sub-directories. (2 marks)
  5. Differentiate between a “word wrap” and “text wrap” as used in word processing. (4 marks)(Total: 20 marks)


  1. Using a well labelled diagram, demonstrate the flow of data, instructions and commands/controls within a computer system. (10 marks)
  2. An operating system is the most important software that runs on a computer. Outline five functions of an operating system. (5 marks)
  3. Accounting software is an essential tool for any business organisation. Describe five features of an accounting software. (5 marks)
    (Total: 20 marks)


  1. Enumerate four advantages of command-line interface type of operating system. (4 marks)
  2. Highlight four limitations of computers. (4 marks)
  3. Outline four benefits of using digital computers. (4 marks)
  4. Describe four advantages of impact printers. (4 marks)
  5. Explain four reasons why the Cathode Ray Tube (CRT) computer monitor has been replaced by the Liquid Crystal Display (LCD) monitor. (4 marks)
  6. (Total: 20 marks)


  1. Distinguish between an “uninterruptible power supply” and a “surge protector”. (4 marks)
  2. State two benefits of installing a computer network. (4 marks)
  3. Outline six features of fourth generation computers. (6 marks)
  4. A lecturer found a student using a computer which had a monitor partially covered with a dust cover.
    Explain two risks posed by use of a partially covered monitor. (4 marks)
    State two factors that determine the processing speed of a computer. (2 marks)

(Total: 20 marks)


  1. Kinda, a middle level manager, would like to represent the trend of sales using a spreadsheet. Justifying your answer, explain four appropriate types of charts the manager could use. (8 marks)
    Outline three advantages of integrated software to a user in an organisation. (3 marks)
  2. The following errors were noted in a worksheet.
    Identify the possible cause for each of the errors above. (3 marks)
  3. Citing an example in each case, describe each of the following application software.
    Presentation software. (2 marks)
    CAD Software. (2 marks)
    DTP software. (2 marks)

(Total: 20 marks)


  1. Explain four elements of a graphical user interface operating system. (8 marks)
  2. Describe three types of networks based on geographical scope. (6 marks)
  3. Explain the function of the following network devices:

Front end processor (FEP). (2 marks)

Hub. (2 marks)

Brouter. (2 marks)

(Total: 20 marks)


  1. Explain the purpose of the following software.
    Device driver. (2 marks)
    Antivirus software. (2 marks)
    Backup software. (2 marks)
  2. Outline two uses of pointing devices. (2 marks)
  3. Highlight six differences between Hard Disk Drive (HDD) and Solid-State Drive (SSD). (6 marks)
  4. Distinguish between a “shareware software” and a “software suite”. (4 marks)
  5. The diagram below shows coded data that could be input into a computer.


  1. State the name of the above method of input. (1 mark)
  2. Suggest a business entity in which the above method of input could be applied. (1 mark)

(Total: 20 marks)

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