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PROVINCIAL EXAMINATION

INFORMATION TECHNOLOGY

PAPER 2

JUNE 2015

GRADE 10

MARKS: 150

TIME: 2 HOURS

This paper consists of 11 pages

Page 2 of 11

INSTRUCTIONS AND INFORMATION:

1. Tear off the last page and use as answer sheet for Section A.

2. Write neatly and readable.

3. Number question precisely as on the question paper.

SECTION A

QUESTION 1.1. [15]

Complete the cross word puzzle by giving the necessary terminology for each of the following.

1. The type of software used for productive work and to accomplish specific tasks. 2. The type of software used to control and maintain your computer. 3. This port connects devices for fast data transfer. 4. The process of getting two sets of the same data files on two different devices

updated with the latest copy of the file. 5. A modem we use for high speed data transfer over digital telephone networks. 6. Give the acronym for the electronic circuit board with RAM on. 7. The programs that are part of system software and do maintenance and

administrative tasks and are installed with the operating system. 8. This number system consist out only 1 and 0 9. The type of Copyright law which allows people to use and distribute work whilst

still allowing the creator some control over where and how it can be used. 10. The study of the human body to try to design products so they better fit the way

that we actually function. 11. An error condition that occurs when there are not enough bits available to

represent an integer value accurately. 12. The ‟sequence‟ of folders that load to the location of a specific file. 13. This type of file is used to distribute document files. You need Adobe Reader to

read it. 14. It refers to the number of pixels used to form the screen image. 15. Most peripheral devices (e.g. printers) connect to the computer through this type of

port.

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QUESTION 1.2. [10] Say if the following statements are TRUE or FALSE.

1.2.1. The processor allows the computer to keep instructions and data that it is not currently working on, so that they can be accessed and used when needed.

1.2.2. Data mining is how to process and analyse data looking for valuable information that you did not even know was there.

1.2.3. Each programming has variables that we declare or use to store its associated data. Each data type offers a variety number of bytes as determined by the programming language.

1.2.4. A .jpg file can be imported by most programs such as MS Word.

1.2.5. Buying one software license and installing it on multiple computers are

legal.

1.2.6. An algorithm is a sequence of steps that can be followed in order to solve

a specific problem.

1.2.7. Accelerometers are the sensors in smartphones that allow you to control

games and do things like „undo‟ or „skip this song‟ simply by shaking your device.

1.2.8. Speaker and headphones are the devices most commonly used to obtain

output from the computer.

1.2.9. The quality of the sound that a computer produces depends on the sound

card and available mixing boards.

1.2.10. iOS and Android Operating systems are used for mobile devices.

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SECTION B

QUESTION 2: BASIC CONCEPTS OF COMPUTING.

In today‟s society there is a variety of Information Communication Technology, e.g. Laptops, Smartphones and Tablets.

2.1 Give the definition of a computer. (4) 2.2 BTF 179 MP is an example of ______(Data/Information) (1)

2.3.1 Give the difference between dedicated devices and general purpose

computers. (2) 2.3.2 Give an example of each. (2)

2.4 Data must also be in the memory of the computer to work with it. Give

the definition of memory. (2)

2.5 Software are categorised by their functions. 2.5.1 What type of program allows you to perform tasks based on calcula-

tions? (1) 2.5.2 What type of program add extra features to software? (1) 2.5.3 Give an example of a Database program. (1) 2.5.4 Give an example of a Graphics and Design program. (1) 2.5.5 What type of program combine text, sound and graphics, including

animation into a presentation? (1) 2.6 Linux is an example of open source software. 2.6.1 Give a description of what Open source software is. (2) 2.6.2 Give two advantages of Open source software. (2) 2.6.3 Give two disadvantages of Open source software. (2) 2.6.4 What is the main difference between open source software and Pro-

prietary software? (1) 2.7 What influences or determine the processing power of a computer? (3) 2.8 Give a description of a Server. (2) 2.9 What is the difference between a Consumer tablet and a Tablet PC

in terms of cost and battery life? (2)

Mpho is a new learner to the school and has chosen IT as one of his subjects. IT was never offered to Mpho at his previous school so he is aware that he has a lot of catching up to do. He bought a laptop computer so he is able to practise his computer and programming skills at home. He has also asked you to help him and show him more about computers and programming.

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2.10 Why do we use computers? Name FIVE reasons. (5) 2.11 Give five disadvantages in using computers. (5)

[40]

QUESTION 3: BASIC CONCEPTS OF HARDWARE AND INTEGRATED

SCENARIO.

3.1 Consider the specifications given in the following advert for a monitor and a computer and answer the questions that follow:

COMPUTER:

MONITOR: 21.5” Wide LED Backlight Display 1920 x 1080 8 000 000:1 Contrast Ratio 300 Nits 2 ms response time VGA. DVI-D & HDMI inputs 3 Year Warranty

3.1.1. Clearly explain what the 21.5” specification refers to. (1)

3.1.2. The monitor is listed as a wide display. Explain what this means and give TWO benefits of a wide screen for the user (2)

3.1.3. Clearly explain what the „1920 x 1080‟ specification refers to and why this would be important for a user. (2)

3.1.4. To what does the „2ms response time refer to? (1) 3.1.5. What does the „contrast ratio‟-specification refers (2) 3.1.6. In the advertisement of the computer they refer an Intel Pentium 4 processor. 3.1.6.1. What is the function of the central processing unit in a computer? (1) 3.1.6.2. What is the function of a fan at the central processing unit? (1) 3.1.6.3. In what unit are a central processor‟s speed measured? (1) 3.1.7. The 512Mb DDR RAM refers to the memory of the computer.

Name THREE characteristics of memory. (3) 3.1.8. The advertisement refer to two secondary storage devices.

Name them. (2) 3.1.9. The printer is advertised as having Bluetooth technology. 3.1.9.1. Name ONE advantage of this technology. (1) 3.1.9.2. Explain how this could be of any benefit to Mpho getting access to textbook

information and revision exercises. (1)

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3.2 To what does the term „Hard copy‟ refer to? (1)

3.3 What is special about SSDs (Solid State Drives)? (2)

3.4 What is the advantage of a LED monitor over a CRT monitor? Name 3 (3)

3.5 Besides optical scanners that use light to read images, you also get other types of scanners. Name three. (3)

3.6 Why is a PC Tablet more ideal for someone who creates Digital Arts? (1) 3.7 What is the function of DTD‟s (Data Terminating Devices) (2)

3.8 What type of ports will be used to transfer data from a video camera to

your computer? (1) 3.9 What connection port provides users with the fastest external connection

currently? (1)

3.10 FIT THE PICTURE OF THE SPECIFIC PORT IN COLUMN B TO THE

CORRECT TERM IN COLUMN A, E.G. 1 C: (4)

COLUMN A COLUMN B 3.10.1 FIREWIRE A.

3.10.2 RJ-45

B.

3.10.3. Sound C.

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3.10.3. VGA D.

[37]

QUESTION 4: BASIC CONCEPTS OF SYSTEM SOFTWARE

4.1 Name FOUR functions of an Operating system (4) 4.2 How does embedded OS differ from those installed and used on a

general – purpose PC (1) 4.3 By using a graphical user interface, and allowing people to work with the

Computer by „pointing‟ instead of typing out command words, computers are more intuitive and natural to use. Name THREE aspects or characteristics of a GUI. (3)

Choose one answer: (4.4 – 4.6)

4.4 (Label / Radio button / List box / Combo box) allows the user to choose only one from a given (small) set of options (1)

4.5 (Label / Radio button / List box / Combo box) allow the user to enter an option of their own (1)

4.6 (Label / Radio button / List box / Combo box) force the user to only choose from the options listed (1)

4.7 Name TWO examples of Utilities software (except Compression software) that perform system maintenance and administrative tasks. (2)

4.8 Name an example of a compression software program (1)

4.9 What is the function of a software driver? (1)

[15]

QUESTION 5: INFORMATION MANAGEMENT

5.1 Why is it not a good idea to change the file extension? (1) 5.2 Give TWO limitations that some Operating systems place on file names.2)

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5.3 Complete the following diagram. (3)

5.4 Give TWO advantages of DLL files. (1)

5.5.1 Convert the following binary number to a decimal number, showing all your calculations. (2)

5.5.2 Convert the following hexadecimal number to decimal, showing all your calculations. (2)

5.5.3 Convert the following decimal number to a binary number. 199 (2)

5.5.4 Convert the following decimal number in hexadecimal notation. 1456 (2)

[15]

QUESTION 6: SOCIAL, ETHICAL AND LEGAL ISSUES SURROUNDING ICT’S

6.1 What is the acronym EULA for? (1) 6.2 Explain what is meant by the term “digital devide”, and list the factor that

contributed to her falling victim to the Digital Divide (2) 6.3 Now that you have access to an Internet Connection, you can keep in

touch with friends and family much more easily. List and discuss two ways in which e-communication has change the way people communicate today (4)

6.4 In preparing examination papers the teacher has been spending long hours working with the computer. a. What are TWO possible adverse effects of working on a computer for

long hours without taking breaks? (2) b. Suggest TWO ways to avoid these adverse effects mentioned. (2)

2.6.5 Government supports Green Computing. a. Explain the concept Green Computing. (2) b. Describe two ways in which you can practice Green Computing. (2)

[14]

Programming language

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QUESTION 7: ALGORITHMS 7.1 Look at the Algorithm and complete 7.1.1 – 7.1.5:

Begin

Ask the length of the room Get RoomLength Ask the width of the room Get (7.1.1) (1) Ask a tile side Get TileLength

RoomArea = (7.1.2) x (7.1.3) (2) TileArea = sqr(TileLength)

Boxes = round(roomArea / TileArea) Cost = 60 x Boxes Display message : You will need, ‘(7.1.4)’, of tiles and it will cost you R, ‘(7.1.5)’ (2)

[5]

Grand total: [150]

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QUESTION 1 NAME AND SURNAME: __________________________________________

Question 1 - CROSS WORD PUZZLE

9 1

13

4

3

14

7

15

8

6 12 11

2

5

R

10

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1

GRADE 10 INFORMATION TECHNOLOGY JUNE 2015

TOTAL: 150 PAPER 2

TIME: 2 HOURS MEMORANDUM

SECTION A

QUESTION 1.1. [15]

1.1.1 Application software 9 1.1.2 System software9 1.1.3 Firewire9 1.1.4 Synchronise9 1.1.5 ADSL9 1.1.6 DIMM9 1.1.7 Utilities9 1.1.8 Binary9 1.1.9 Copyleft9 1.1.10 Ergonomics9 1.1.11 Overflow9 1.1.12 PATH9 1.1.13 PDF9 1.1.14 Resolution. 9 1.1.15 USB9

QUESTION 1.2. [10] Say if the following statements are True or False. 1.2.1. False9 1.2.2. True9 1.2.3. False9 1.2.4. True9 1.2.5. False9 1.2.6. True9 1.2.7. True9 1.2.8. False9 1.2.9. False9 1.2.10. False9

2

SECTION B QUESTION 2: BASIC CONCEPTS OF COMPUTING. 2.1. A computer is a multipurpose electronic tool 9 that can receive data (input)9 , can process the data9 , can produce results and can output them9. (4) 2.2. Information9. (1) 2.3.1. Dedicated devices are designed to perform one task only. 9. General

purpose computers can perform more than one function, by having different types of programs loaded on the respective devices. 9. (2)

2.3.2. Dedicated= washing machine, robots, microwaves9. General computers= cell phones and computers. 9 (2) 2.4. Memory is the place where the computer temporarily stores those sets of

instructions9 and data it is currently working with. 9 (2) 2.5.1. Spreadsheet.9 (1) 2.5.2. Plug-ins. 9 (1) 2.5.3. Microsoft Access / OpenOffice Base / MySQL9 (1) 2.5.4. CorelDraw / Adobe Photoshop / Adobe Illustrator / Macromedia

Freehand / AutoCAD / Microsoft Paint. 9 (1) 2.5.5. Presentation software. 9 (1) 2.6.1. Open source software is software made available with a license that

allows you to access 9and modify the source code, but not to sell the software. 9 (2)

2.6.2. No cost / low cost (usually free) 9 Access to source code 9 Freedom to adapt and change the software to suit your own need. 9 Access to a community of users /support. 9 (2) 2.6.3. No one to hold responsible for glitches and shortcomings in the Software. 9 Risk of poor support. 9 Higher skills needed if you want to use this model to its fullest potential9 Various ‘varieties’ of the same software can arise. 9 (2) 2.6.4. Proprietary software don’t get the source code. 9 (1) 2.7. Speed of the CPU9 Amount of storage9 Size of memory9 (3)

3

2.8. Servers are powerful computers that are used in network environments9 to help ‘run’ a network of linked computers.9 (2) 2.9. Tablets are more expensive9 and have a shorter battery life. 9 (2) 2.10. Computer:

x Are fast and accurate9 x Are good at repetitive tasks9 x Do not get tired or complain or demand increase in pay9 x Are multy -purpose9 x Enable faster communication9 x Are excellent at keeping records9 x Allow for many and various methods to process and analyse data9(5).

2.11. Computer:

x Are only as good as the way they are used and the data that is fed to them9

x Can only be used for a limited number of physical applications9 x Can be very expensive9 x Cannot think or solve problems9 x Need trained and skilled programmers and operators9 x Might need specially developed software to solve a problem

(expensive) 9 x Quickly become outdated9 (5)

[40] QUESTION 3: BASIC CONCEPTS OF HARDWARE.

3.1.1. This refers to the size of the monitor, measured diagonally in inches from one corner to the other. 9 (1)

3.1.2. Wide screens are much wider than they are tall – the same as high- definition TV screens. 9 The wide screen format is useful, as you can easily view documents side by side9, and it is also nice for watching DVDs. 9 (3)

3.1.3. This refers to the resolution of the monitor. OR The resolution refers to the number of pixels (small dots) used to form the screen image. 9 . The resolution is measured horizontally and vertically in pixels. OR A monitor with a resolution of 1920 X 1080 will display 1920 pixels across the screen and 1080 pixels vertically (‘down’) the screen. 9 (2)

4

3.1.4. This is the time taken in milliseconds to change a pixel. 9 (1) 3.1.5. The contrast ratio is the measurement or of the ratio between the

darkest black and the brightest white the monitor can produce – the larger the ratio, the better. 99 (2)

3.1.6.1. The CPU is the part of the computer that does all the work (Processing) 9 (1)

3.1.6.2. The fan cools down and prevent the CPU from over heat. 9 (1)

3.1.6.3. GHz9 (1)

3.1.7.

x It is volatile (it loses its contents when it has no power). 9 x It is where the CPU keeps all the data / instructions it is working on. 9 x Data transfer between RAM and CPU is fast because it is an electronic

process. 9 x The more RAM you have in your computer, the better it will perform9. x RAM is supplied in DIMMs (Dual Inline Memory Modules) that fit into

DIMM slots on the motherboard. 9 x RAM is expensive (it costs more per GB than storage) 9 (3)

3.1.8. Hard Disk Drive9 and DVD Drive9 (2)

3.1.9.1. It connects different devices to communicate with each other without having to use cables. 9 (1)

3.1.9.2. Data can be easily transferred to his laptop. 9 (1)

3.2. It is a copy of a document that is printed on paper. 9 (1)

3.3. SSD’s use a special type of electronic memory than can retain its data when the power is off.(the same that is used fir flash drives) 9. They are slower than RAM, but faster than HDD or DVD’s9 (2)

3.4. They are smaller9, lighter9, more efficient9 and cheaper9. (3)

3.5. 3D scanners9

Barcode scanners9

Magnetic stripe readers9

Biometric scanners9 (3)

3.6. It allows you to draw or paint precise detail and is far more precise and accurate than using a finger. 9 (1)

3.7. The function is to convert signals9 from your computer to the type of signals that can be transmitted over a telephone line and vice versa. 9 (2)

5

3.8. Firewire9 (1)

3.9. Thunderbolt. 9 (1)

3.10.1. B9

3.10.2. D9

3, 10.3. A9

3.10.4. C9 (4)

[37]

QUESTION 4: BASIC CONCEPT OF SYSTEM SOFTWARE 4.1. Provides an interface 9 Process and task management9 Memory management9 Input/output management9 Disk management9 (4) 4.2. Embedded operating systems in that they are stored on internal memory Chips. 9 (1) 4.3. The user does not have to remember or type long instructions. 9 It uses pictures (icons) to represent programs / instructions. 9 It uses a mouse or some other pointing device to allow the user to Interact with anything. 9 It makes using a computer interactive. 9 The user can come to understand it and start to use it very quickly. 9 (3) 4.4. Radio button9 (1) 4.5. Combo box9 (1) 4.6. List box9 (1) 4.7. Anti-virus software9 Windows Explorer9 Disk Cleanup9 Defragmenter9 Backup9 (2) 4.8. WinZip (1) 4.9. They allow an operating system to communicate with and control a hardware device. 9 (1) [15]

6

QUESTION 5 : INFORMATION MANAGEMENT.

5.1. It is generally not a good idea to change the file extension yourself as Windows may no longer recognise the file type. 9 (1)

5.2. Max 260 characters 9

Filename consists of the filename followed by a period (full stop) and a 3 – 5 letter file extension. 9

Case sensitive 9 (2)

5.3. Complete the following diagram. (3)

5.4. – Programs share DLL-files and it can be called by programs that are

executed 9

- It is quicker and easier to update a program 9 (1)

5.5.1. = 1 x + 0 x + 0 x +1 x + 1 x + 1 x + 1 x + 0 x + 0 x = (1 x 256) + (0 x 128) + (0 x 64) + (1 x 32) + (1 x 16) + (1 x 8) + (1 x 4) + (0 x 2) + (0 x 0) = 256 + 32 + 16 + 8 +49 = 316. 9 (2) 5.5.2. = (5 x ) + (E x ) + ( 8 x ) = (5 x 256) + (14 x 16) + (8 x 1) 9 = 1280 + 224 + 8 = 1512. 9 (2) 5.5.3. 199 = 199 ÷ 2 = 99 res 1 99 ÷ 2 = 49 res 1 49 ÷ 2 = 24 res 1 24 ÷ 2 = 12 res 0 12 ÷ 2 = 6 res 0 6 ÷ 2 = 3 res 0 3 ÷ 2 = 1 res 1 1 ÷ 2 = 0 res 19 = 9 (2)

Programming

language Programming

code 9 e

Compiler 9 Executable

program 9

7

5.5.4. 1456 = 1456 ÷ 16 = 91 res 0 91 ÷ 16 = 5 res 11 5 ÷ 15 = 0 res 59 = 9 (2)

[15]

QUESTION 6: SOCIAL, ETHICAL AND LEGAL ISSUES IN ICT’s

6.1 End User License Agreement? 9 (1) 6.2 The gap between people that have access to computers and technology and

people that do not. 99 The age gap 9 (3)

6.3. It has made communication faster/immediate. Talk to people anywhere in the world99 .

It has made communication cheaper. Sending documents and photos are cheap. 99 (4)

6.4. Repetitive strain injury and carpel tunnel syndrome. 99 Take regular breaks and sit correctly in front of the computer. 99 (4)

6.5. Green computing refers to the initiatives to design, use and dispose of technology in an environmentally or eco-friendly way. 99 (2)

Switch of computers/devices not in use. Recycle devices, refilling and re-using printer cartridges. 99 (2) [14]

QUESTION 7: ALGORITMS

Begin

Ask the length of the room

Get RoomLength

Ask the width of the room

Get (7.1.1) RoomWidth 9 (1)

Ask a tile side

8

Get TileLength

RoomArea = (7.1.2) RoomLength 9x (7.1.3) RoomWidth 9 (2)

TileArea = sqr(TileLength)

Boxes = round(roomArea / TileArea)

Cost = 60 x Boxes

Display message : you will need ,’(7.1.4) Boxes’ 9, of tiles and it will cost you R, (7.1.5)Cost’ 9 (2)

[5]

Total: [150]