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PHS CyberSchool

Computer Studies SG Grade 11 - 2002

Last updated 29 November 2002

Theory examination November 2002 - 90 minutes - 100 marks - Answers

Section A - Multiple-choice questions - 10 marks 

  1. A
  2. D
  3. C
  4. D
  5. C
  6. C
  7. E
  8. D
  9. D
  10. E
  11. D
  12. C
  13. D
  14. B
  15. C

Section B - True or False - 5 marks

  1. F - debit card
  2. T
  3. F - ROM, secondary memory
  4. F - cell
  5. T

Section C - Hardware and Software - 25 marks

  1. influences connecting speed, download speed, and money spent [2]
  2. type of computer, i.e. Apple or IBM PC, or hardware environment [2]
  3. storage area, holds addresses of instructions and data in memory, holds data CPU currently utilizing [3]
  4. Next instruction to be executed fetched from memory to the CPU, control unit decodes the instruction, the data is transferred, the instruction is executed [4]
  5. Diagnostic routines ..., initialising routines ..., bootstrap loader ..., operating system loads drives into RAM - give in full [4]
  6. Utilities
    1. control panel, in operating system [1]
    2. picks up lost clusters, allows user the option of deleting them or turning them into files to let the user examine them, rationalizes cross-linked files, checks for errors and fixes them [2]
    3. tells user what percentage of drive is fragmented, rearranges files in continuous block of sectors [2]
  7. Ports
    1. LPT, COM, USB [3]
    2. USB - allows up to 127 devices to be daisy chained onto one port, are 'plug and play', detect and configure automatically, hot swappable  [2]

Section D - Terminology - 10 marks

  1. H
  2. G
  3. D
  4. S
  5. P
  6. V
  7. F
  8. X
  9. E
  10. A

Section E - Data communication - 15 marks

  1. ..
    1. cost is an issue, poor network skills, small system, LAN [2]
    2. security important, good network skills, cost not an issue, GAN [2]
  2. power surge, power failure - install a UPS, viruses - install anti virus software, hackers entering the system - install a firewall, etc, etc [2]
  3. long list  [2]
  4. ..
    1. Linux (Red Ferrett) [1]
    2. thin client [1]
  1. 1 = ring topology, 2 = fibre optic cable,  4 = coaxial cable, 5 = star topology, 6 = BNC connector [5]

Section F - Social implications of the computer - 10 marks

  1. Musica, Woolworths, Pick 'n Pay, Blue Bean, Edgars, Kalahari.net but NOT iAfrica.com. [2]
  2. ..
    1. no queues, 24 hour banking, safer doing it for the security of home [2]
    2. web could be slow, cannot physically draw cash, need web access, no personal contact [2]
      1. evening any day of the week or during the day at the weekend - businesses not using the Net, and people not using the Net and it is during call more time [1]
      2. evening any day of the week or during the day at the weekend - businesses not using the Net, and people not using the Net [1]
  3. Bezos - created online book shop, Shuttleworth - created digital certificate which assists in safe shooping on the web [2]

Section G - Application skills - 20 marks

  1.  
    1. Date of birth (not Age),  Qualifications, Experience, Training, Skills (Not Name or Address) [4]
  2. Headings bold, top row [2]
  3. ...
    1. type lower down the page than usual - leave space for pre-printed letterhead [1]
    2. use a template [1]
  4.  
    1. =sum(B5:B9) [2]
    2. =average(B5:B9)  [2]
    3. =B5*G$2 [2]
    4. =C5*H$2 [2]
    5. =sum(C5:D5) [2]
    6. currency [2]

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