PHS CyberSchool

Computer Studies SG Grade 11 - 2001

Theory examination May 2001 - 90 minutes - 100 marks - Answers

Section A - 30 marks

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

1. A
2. D
3. C
4. D
5. B
6. D
7. A
8. C
9. B
10. B

    /10/

Question 2 - Matching columns - 1 each - 10 marks

1. B, H
2. O
3. R
4. I
5. P, Q
6. L
7. F
8. C
9. G
10. M

/10/

Question 3 - True or False - 1 mark each - 5 marks

1. False - Primary key
2. False -  Java, Gif Construction Set, PaintShopPro (nothing) or 6+ and FrontPage (although I did not really want FrontPage)
3. False, Linux
4. False, computer technician
5. True 

/5/

Question 4 - Dear Doctor Byte ... - 1 mark each - 5 marks

For this question I read the answer to see if the kids 'knew' the answer.  This was the first time such a question was asked.  In future it will get 2 marks each as it required so much writing and thinking.

/5/

Section B - 50 marks

Question 5 - Computer Architecture - 27 marks

1. slots, ports (1)
2. nothing (1)
3. ROM BIOS (1)
4. sliver gold lines (1)
5. 32, 64 or 128 (1)
6. cache (1)
7. to accelerate processing of instructions by CPU (1)
8. RAM, cache, registers (2)
9. temporarily saves web pages recently viewed, so that web browsing is quicker as page is 'viewed' from cache, download speed and bandwidth is poor in SA (3)
10. to hold BIOS permanently, never deleted even when power off, stores program that must get the computer going when it is switched on (3)

11. 1. b,d,i - CU, ALU, Registers
    2. j - ROM
    3. e,c,a - Data bus, Address bus, Control bus
    4. c,e,a - Data bus, Address bus, Control bus
    5. a,c,e - Data bus, Address bus, Control bus
    6. h - RAM
    7. f - Expansion slots
    8. g - I/O bus

    (½ each - 4)

12.  (8)

    		What does it transport?	Where to?	Where from?	In which direction?	How does it affect the computer?
    System bus	Data bus	a. Data & instructions	CPU	Memory	d. CPU to Memory both ways	g. wider the data bus, i.e. the more bits it can carry,  the faster the comp can operate
    System bus	Address bus	b. Memory address	CPU	Memory	e. CPU to memory	h. Wider address bus more memory the computer can address
    System bus	Control bus	c. Control signals	CPU	Memory	f. CPU to memory

/27/

Question 6 - Data communication and networks - 23 marks

1.  
   1. Material that does not age, requires little or no human interaction, e.g. buying 'plastic' goods, banking. (2) Very poorly answered
   2. Less rental as do not require prime retail area, less shoplifting, can reach a wider market (2) Seemed to have remembered the IBM advertisement from TV.

   [4]

2. (Have not taught it - hoped they would know these trends.)
   1. User with a WAP enabled cellphone uses the stylus to write the address of a Web site on the phone.  The microbrowser sends the address digitally over the airwaves.
   2. A cell phone tower receives the signal and transmits it to a server on the wireless network.
   3. The server is connected to the Internet and contains software called a WAP gateway.  This software searches for the Web site.
   4. Coding software converts the Web pages from HTML to WML (language used for text display in WAP enabled phones).  The WAP gateway prepares the document for wireless transmission.
   5. The WML document is transferred to the person's cellphone.  The text appears on the cellphone screen.

   [4]

3. (Needed sentences or no marks)
   1. Able to get more information and resources (1)
   2. learner control with regard to unsuitable sites must be monitored, scheduling access, extra costs of upgrading hardware to keep pace with Internet developments, costs of telephone calls (1)
   3. need larger hard drive for downloaded material, need anti-virus software, require dedicated telephone line. (2)

    

   [4]

4.  

   1. Gain more clients, do not require so many staff, can provide service around the clock and not only at peak times, less physical money handled and therefore less security problems. (1)

   2. around the clock, in privacy of own home, safer, more convenient, time saving (1)

   3. www.absa.co.za or www.absa.com (1)

   4. pin number, password (not digital signature)  (1)

   5. yourname@mweb.co.za (1)

   6. modem, US Robotics (2)

   7. web browser, Netscape Navigator or Internet Explorer (2)

   8. transfer of funds, check exchange rates, order cheque book (Not pay accounts and transfer of funds) (2)

   [11]

/23/

Section C - 20 marks

Question 7 - 20 marks

1.  
   1. Text - names, Currency - Fees, Date - Date of joining, Memo - any notes, OLE - picture, ID - Membership number, Number - ??? (2)
   2. 50 (1)
   3. XXXXX.mdb (1)
   4. Membership number. (1)
   5. Mail merge (1)
   6. Merge data from database with Word (1)

   [7]

2.  
   1. vector  (1)
   2. Paint, PaintShopPro, CorelDraw(1)
   3. Arial, Times New Roman, Comic Sans, Verdena (2)
   4. better wizards, more templates, variety  (2)

   [6]

3.  
   1. animated slides  (1) Very poorly answered
   2. to illustrate a point to an audience (1) Very poorly answered
   3.  Presenting school with animations, colour, graphics, text with interactivity, 24 hours a day, at a distance.  When the answer was read, if brochure, newsletter or school magazine could replace the word web site, then it was not accepted.  Not advertising. Very poorly answered (1)
   4. webcam (1)
   5. jpg, avi (1)
   6. FrontPage, HotDog, Dreamweaver Very poorly answered (1)
   7. Adobe Acrobat Very poorly answered (1)

      [7]

/20/

/100/