PHS CyberSchool

Computer Studies SG Grade 11 - 2002

Last updated 28 May 2002

Theory examination May 2002  - 90 minutes - 100 marks

Section A - 30 marks

Question 1 - Multiple-choice questions - 1 mark each - 10 marks

Select the one answer to each question.

1. In 2002 the second largest ISP in South Africa is definitely not …
   1. ABSA.
   2. AOL.
   3. Kingsley.
   4. Western Cape Schools' Network.

    

2. An area of artificial intelligence that simulates certain experiences using special headgear, gloves, and software that translates data into images.  This feature was used by Mark Shuttleworth in training for his time of weightlessness in the International Space Station.:
   1. collaborative technology
   2. expert system
   3. shell
   4. virtual reality

    

3. The most widely used facility of the Internet is ...
   1. email.
   2. internet relay chat.
   3. newsgroups.
   4. World Wide Web.

    

4. In order to use telephone lines to carry data transmissions, a hardware device that will convert digital signals to analogue signals is required. This device is called a(n) …
   1. encryptor.
   2. interface.
   3. modem.
   4. translator.

    

5. To read a downloaded bank statement from an online bank such as Absa which of the following format groupings is unsuitable?
   1. ASCII format, Microsoft Money, Quicken, Pastel Formats
   2. Comma-delimited text file viewable by word processors or spreadsheets
   3. Excel, Microsoft Money
   4. PowerPoint, Windows Metafile Format, JavaScript

    

6. Computer Architecture refers to the design and ...
   1. construction of a computer program.
   2. construction of a computer system.
   3. operation of a computer program.
   4. operation of a computer system.

    

7. If you look carefully at the motherboard, you will notice that some chips are soldered to the board whilst others are plugged into the board. The removable chips allow you to ...
   1. add extra power sources to your computer.
   2. integrate the ALU and the system clock unit.
   3. re-arrange the layout of your motherboard.
   4. upgrade your computer components.

    

8. The Internet is ...
   1. a global network of computers networks.
   2. a government-owned agency that links computers.
   3. software for sending e-mail around the world.
   4. a specialised form of local area network.

    

9. When the electrical power is disrupted or cut off, data and programs are lost in ...
   1. basic tools.
   2. hard disk.
   3. memory.
   4. secondary storage.

    

10. The CPU deals with each instruction in a cycle. The sequence of instructions to carry out one machine instruction is called the instruction or machine cycle. The first action is to fetch the instruction from memory and then the program counter is updated (reset). The other three phases of the machine cycle in the correct order are:
    1. Decode the instruction; Execute the instruction; Transfer the data.
    2. Decode the instruction; Transfer the data; Execute the instruction.
    3. Execute the instruction; Decode the instruction; Transfer the data.
    4. Transfer the data; Execute the instruction; Decode the instruction. 

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Question 2 - Matching columns - 1 each - 10 marks

Write down the letter of the item in Column B which best matches the description in Column A.

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Question 3 - True or False - 1 mark each - 10 marks

State whether each statement is True or False. Correct each of the false statements by rewriting the statement, changing the bold-printed portions only. No marks will be awarded for simply negating the false statement.

1. A terminal is a device with a keyboard for inputting data to a computer and a display screen for receiving data from the computer.
2. The URL of the web site of the Independent Electoral Commission used extensively during the South African 1999 General Election, and still used today, is [ http://www.elections.org.sa ].
3. We usually scan a page from top left to bottom right and we see the left-hand page first as we open a spread.
4. When creating a graph for use in a presentation one should use the thinnest and brightest bars.
5. A system analyst deals with breakdowns in computers and related equipment. They have usually qualified at a technikon and / or have an A+ certificate.
6. A gateway is a device that can interpret and translate the different communication rules (protocols) that are used on two different networks so that communication can occur.
7. A good desktop publishing computer has several megabytes of  RAM and a fast processor.
8. bluemountain.com is a cyber bookstore.
9. Secondary memory is volatile.
10. Video conferencing, such as that used by Dimension Data in Rondebosch, uses asynchronous transmission of data.

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Section B - 50 marks

Question 4 - Computer Architecture - 26 marks

Note the amount of marks and provide sufficient information.

1. What do we call the 'things' on the motherboard into which other parts of the computer can be connected or plugged? (1)
2. What do buses look like on a motherboard? (1)
3. Which bus influences the speed at which the computer can operate? (1)
4. What is the main function of primary memory? (1)
5. What is stored in RAM when the power goes off? (1)
6. How much RAM is found on the new computers in the computer laboratory at school? (1)
7. What is stored in ROM when the power goes off? (1)
8. In the past memory chips were soldered onto the motherboard.  Why and how are SIMMS an improvement on this? (1)
9. What is normally stored in cache memory? (1)
10. Which is the faster memory - cache or RAM? (1)
11. Where would you find the electronic copy of a document after it has been opened in a word processor - in secondary memory, primary memory or both primary and secondary memory? (1)
12. What is the influence of cache memory on the performance of a computer?  Explain. (2)
13. Why is it necessary to use ROM in a computer? (2)
14. Name two manufacturers or makes of CPUs. (2)
15. Arrange the following by capacity or ability to hold data, beginning with the largest: cache, RAM, registers. (2)
16. What is web caching, and why is it important, particularly in South Africa? (3)
17. Identify the following on the simplified drawing of the motherboard showing the relationship between the components. (Numbers or positions can be the home of more than one item from the list.) (4)
    1. Address BUS
    2. ALU (Arithmetic Control Unit)
    3. Control Bus
    4. CU (Control Unit)
    5. Data Bus
    6. Expansion slots
    7. I/O bus
    8. RAM
    9. Registers
    10. ROM

    

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Question 5 - Data communication and networks - 21 marks

1. How did Mark Shuttleworth influence the Internet and e-commerce?  Explain with names and examples.

   [2]

2. "The Internet is changing commerce."
   1. What type of commercial transactions can successfully take place via the Internet? Explain and give examples of two types. (2)
   2. Give two advantages for a company of doing sales over the Internet as opposed to brick and mortar company. (2)

   [4]

3. The network in a computer centre in a poorly resourced school is set up so that it is possible to log on to the Internet.
   1. Describe one advantage of the Internet for such a school. (1)
   2. Describe one non-technical problem a school must consider when using the Internet. (1)
   3. Describe two technical problems a school must consider when using the Internet. (2)

   [4]

4. "Absa Direct Internet Banking is the new direct banking system offered to Absa clients. The service is available using the Internet and it allows you to access your bank accounts from anywhere. "  Taken from the Absa web site May 2001.

   1. Give one economic reason why Absa is encouraging Internet banking? Explain in a full sentence. (1) 
   2. Give one advantage for the client of Internet banking. Explain in a full sentence. (1)
   3. Name one disadvantage for the client of Internet banking. Explain in a full sentence. (1)
   4. What is the Absa web address? (1)
   5. What do the clients use to make sure the 'wrong' people do not access their Internet account? Explain in a full sentence.  (1)
   6. What would your email address be if you had an account with MWeb? (1)
   7. Which is cheaper, face-to-face or Internet banking?  Why is it so?   Explain. (1)
   8. What software would you need to access the Absa web site?  Give the type of software and the name of a application, e.g. a word processor and MSWord. (2)
   9. Name two banking services offered by Standard, Nedbank or Absa to their clients who bank via the Internet. Explain in two full sentences. (2)

   [11]

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Question 6 - Social and ethical issues - 7 marks

1. On many occassions this year many learners have asked their Computer Studies teacher for a copy of Frontpage or MsOffice.  She refused to give it to them as it was illegal to do so.
   1. Give the name of the South African firm that deals with software piracy. (1)
   2. How does an organisation, such as Pinelands High School, buy computer programs such as MsOffice for a network?  Do they buy one copy, many copies, a licence with ...  ?   Explain.  (1)
   3. Explain how Pinelands High School buys shareware software such as PaintShopPro? (1)

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2. More and more people conduct their office business from home.  We call such people telecommuters because they do not drive to work but are linked to their work by a network.   They receive their tasks at home and submit their efforts electronically.
   1. Name two advantages that telecommuting has for the employee. (2)
   2. Name two advantages that telecommuting has for the economy of the country. (2)

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Section C - 16 marks

Question 7 - 16 marks

1. You have been asked to help organise a concert.
   1. You have to create advertising for the concert. There are two types of graphics - vector and bitmap. Which type of graphic would you use if you wished to enlarge or make the graphic smaller without creating fuzzy lines? (1)
   2. Give the name of a well-known computer program that will let you create graphics in bitmap format. (1)
   3. What software would you use if you wanted to carry one huge file from one computer at a centre to a computer at another centre, and it will not fit onto one disk? (1)
   4. Which works out more expensive for printing - a colour or laser printer? Explain.   (1)
   5. In what way is a desktop publishing program better than a word processing application in 2002? (2)
   6. Name two desktop publishing programs, e.g. one for the home market and the other for the corporate world. (2)

   [8]

2. These days ICT is frequently used to enhance marketing presentations.
   1. What is a PowerPoint, Freelance or WordPerfect presentation? In other words what is an ICT presentation? (1)
   2. Why would a school principal create a PowerPoint, Freelance or WordPerfect presentation? Explain carefully. (1)
   3. What device could be used so that a parent, via the web, could watch what was happening in a classroom? (1)
   4. HTML deals with static elements of a web page.  What language can be used to add interactivity to a web page? (1)
   5. Why would a school have a web site created, as opposed to a printed brochure? Explain carefully. (2)
   6. Name two web editing application used to create a web page? (2)

      [8]

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