PHS CyberSchool

Computer Studies SG Grade 10 - 2004

Theory examination November 2004 - 90 minutes - 75 marks - Answers

Question 1 - Multiple-choice questions - 1 mark each - 15 marks

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

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Question 2 - Computer architecture - 18 marks

1.  
   1. Compaq
   2. Mecer
   3. equal
   4. Compaq
   5. Compaq
   6. Intel
   7. fax modem
   8. Windows XP
   9. SVGA
   10. Mecer
2. The addressable dots on a computer screen. (1)
3. Compact Disk Read Only Memory (1)
4. formatting. (1)
5. Hard disk drive, stiffy disk drive, CD writer (1)
6. Any hardware device attached to and controlled by a computer, i.e. screen, keyboard, mouse, tape drives (2)
7.  
   1. Dot matrix - creates characters by striking pins against the ribbon, prints one character at a time. 
   2. Ink-jet – sprays ink onto paper, high quality text and graphics 
   3. Laser – uses a laser beam to produce an image on the drum. 
   4. Line printer – has a chain of pins or characters that print an entire line at a time. Any two (2)

[18]

Question 3 - Software - 12 marks

1. applications can interact with each other.  (1)
2. .
   1. GUI
   2. MS DOS
   3. Linux or Red Hat (3)
3. Manages and controls input devices, allocation of primary memory, flow of information to and from the processor, secondary storage on disk and output devices (4)
4.  
   1. BIOS
   2. ROM
   3. POST
   4. RAM / primary memory (4)

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Question 4 - Data communication/Internet - 17 marks

1. deception sent via the Internet  (1)
2. Data communication is the collection and distribution of the electronic representation of information from one point to another via an electronic transmission system (2)
3. ISP, telephone company such as Telkom. (2)
4. Transmission Control Protocol / Internet Protocol - communication via a network (2)
5. search engines able to search the Internet and returns links to documents which contain specific keyword. Must be explained in an understandable way. (2)
6. Mail sits at ISP until you dial in and download the mail. Must be explained in an understandable way. (2)
7. Sender, receiver, channel/medium. (3)
8. give your letter a heading; do not add a large attachment; do not type only in capital letters; do not add personal information; one idea for the letter; short, to the point; send no virus (3)

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Question 5 - Social implications of the computer - 13 marks

1. able to bank 24/7; from anywhere; saves you a physical trip to the bank; eliminates long queues; safety of home, NOT quicker, NOT safer. (2)
2. Hospitals, University, Retail Shopping, Library (2)
3. Business Software Alliance / check that people pay for software (1)  Microsoft, Adobe (2)
4. buddy-to-buddy (gving to friend), buying one copy and copying it onto many machines, full scale copying of software for sale. (2)
5.  
   1. Computer games, surfing the net, obtaining info – example theatre performances, Chat room 
   2. Advantages: Remain at home; parents know where children are, cheaper form of entertainment, and work after hours
   3. Disadvantages: Exposed to influences not seen before (4)

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