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COMPUTER APPLICATIONS
TECHNOLOGY
GRADE 11
Paper 2
June Exam
Previous exam papers have been used to
compile these notes, @IMPAQ JUN 2019,
@IMPAQ JUN 2021, DBE rev booklet 2023
@WCED, DBE_JUN 2021
These are only suggested answers from the memorandum. Some information is
repeated, I want to show you the different ways the same information is asked.
I encourage you to answer the calculation/illustration questions without looking
at the answers first.
Good luck. Juffrou Ansie
Topics:
1. MULTIPLE-CHOICE p. 2
2. SYSTEMS TECHNOLOGIES p. 6
3. INTERNET AND NETWORK TECHNOLOGIES p. 17
4. INFORMATION MANAGEMENT p. 21
5. SOLUTION DEVELOPMENT p. 24
6. SOCIAL IMPLICATIONS p. 28
7. INTEGRATED SCENARIOS p. 29 – 37
@ Juffrou_Ansie
, 2
MULTIPLE-CHOICE
Stand-alone Stand-alone software works on its own and cannot
software share data with other programs
CPU Central processing unit (CPU), receives and carries out
the instructions inputted by the user.
GPU Graphics processing unit (GPU), makes the calculations
and follows the instructions necessary to display images
on a screen.
3 basic components Hardware, communication medium, network software
used to set up a
network.
Integrated software Integrated software combines programs generally
used, e.g. word processing, spreadsheets, database
and communication programs in one package
‘Rebooting’ a First, turn devices off, and then reboot/start the
computer operating system.
Plug and play The term for the series of technologies that allows one
to insert a device into a USB port and then to use the
device almost immediately
A printer queue When you send a print task to the printer, it is
temporarily stored on the hard drive where it waits until
the printer is ready to print it.
A server Powerful computer that provides shared resources in a
network.
@ Juffrou_Ansie
, 3
A client computer A server computer provides resources/services in a
network
A server computer A client computer uses resources/services provided by
servers in a network
Thin clients A thin client is a computer that runs from resources
stored on a central server instead of a localized hard
drive. Thin clients work by connecting remotely to a
server-based computing environment where most
applications, sensitive data, and memory, are stored.
The Internet A global network consisting of many networks that are
connected to each other.
Interface Part of the operating system. Provides us with GUI
(Graphical User Interface).
Spreadsheet Type of software used to manipulate numbers
Word processing Type of software used to compose letters
Shareware Shareware is software that can be used for a trial
period. If you want to continue using the software, you
must pay for it.
Freeware Software you can obtain without paying for it and
install as often as you like.
Defragmentation The defragmentation utility will rearrange and
consolidate the distributed parts of files on disk. So that
it can be obtained faster.
Disk clean-up Used to scan the disk for errors and corrupt files. And
then try to fix it
Client The general term given to any computing device that
uses network resources.
@ Juffrou_Ansie
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LAN Connect computers using cables. A WLAN is simply a
LAN implemented using wireless connectivity.
WLAN Connect computers using radio waves. A LAN is a
network that covers limited (geographical) area.
Intranet An organisation's private network, which consists of
web pages referring to the organisation's business.
Information stored here is only available for the
employees of the organisation.
Target audience The group you report to. It should be considered to
know at what level the information should be
conveyed.
Target group People whose information you are trying to analyse. It
can be the entire population, or a specific subsection
A database A database can be described as a collection of data
or facts on a specific topic.
A keylogger Take note of keyboard presses as you type. Are
classified as malware because they can intercept
sensitive information such as passwords and forward it
to a third party.
Adware Software that bombards you with ads when you're on
the Internet. Adware and spyware are problems
regardless of the type of operating system that is used.
Metadata Additional data stored over a file. E.g author,
comments, bit-depth, etc.
RAM The most important hardware specifications that
generally determine the overall ‘power’ of a computer
@ Juffrou_Ansie
, 5
Memory • Retain data and instructions while working.•
Electronic • Fast • More expensive per GB
Storage • Permanently retains programs and data. • Magnetic,
optical or electronic. • Slower speed. • Cheaper per
GB
Driver Software that controls the device. Where can a driver
be found? • Internet • Shop from a store. • May be
included in operating system
UTP cables Used for communication method is used between two
desk top computers
Wireless/ radio Used for communication method is used between a
waves cell phone and the service provider,
Printer cable or wi-fi Used for communication method is used between a
printer and a desktop computer
Access point Consists of a sender/transceiver and an antenna which
transmit and receive radio waves so that the devices
that are wireless enabled are able to communicate
with one another and the network.
Processing stage of The CPU works with the computer’s memory to get
the information instructions on how to display the information from the
processing cycle input device
Storage stage of the Stores it as pixels in the computer’s memory. The
information information is sent to the output device
processing cycle
@ Juffrou_Ansie
, 6
Input device Input devices enter data into a computer. Then it takes
the sent input data and converts it into binary code (
0’s and 1’s)
Output device While output devices take pixels, information or data
from the processing stage and displays or converts into
a format that can be used by the user.
ATM A device that can be used to electronically transfer
money
The relationship CAT skills teach people how to use ICT better
between CAT and
ICTs
Desktop PC The name of a non-portable device that is suitable for
creating documents and web browsing.
SYSTEMS TECHNOLOGIES
Case Study @IMPAQ JUN 2021
Hardware requirements that a computer must meet:
The amount of storage. The size of the memory (RAM). The speed
@ Juffrou_Ansie
and performance of the CPU. Size of the graphics card
, 7
The number 1920 x 1080 refer to Resolution
Memory = 1 GB
The common term for the item referred to in the ‘intel core i7’ specification =
CPU/ SVE
The name of the piece of hardware inside the computer case that allows all the
parts of the computer (ram, hard drive, USB ports, etc.) to communicate with
each other = Motherboard
Why does a computer need so much more storage than memory?
• Storage is needed to hold all apps and data even when the computer is
off, e.g. permanently
• Memory is needed to hold apps and data currently being worked on, e.g.
temporarily
The basic function of GPS technology
To determine the geographical position.
Why it is not necessary to backup an operating system once
it has been installed:
When an operating system is damaged or needs to be
reinstalled, it can be repaired/reinstalled from the original
installation disks.
Reasons why you think a laptop would be better than a desktop computer.
• Portable • Consumes less electricity. • Have a battery
____________________________________________________
The differences between memory and storage in terms of cost and speed @IMPAQ
JUN 2021
• RAM is more expensive than storage
• RAM is faster than storage.
____________________________________________________
@ Juffrou_Ansie
, 8
The reasons why optical drives (CD drives) are generally no longer used. @IMPAQ
JUN 2021
• Slow.
• Unreliable/easily scratched or damaged.
• Low capacity.
• Some modern computers no longer have optical drives.
• Media content and apps now distributed via Internet.
____________________________________________________
Each object added to a brochure needs a photo. You have suggested a digital
camera. @IMPAQ JUN 2021
The maximum possible resolution of a digital camera = MP
(Megapixels)
Sharing photos from your smartphone
• Via email or social networking.
• eg Facebook, WhatsApp etc Cloud Bluetooth or
wireless
Advantages of using a card reader, instead of Bluetooth or a cable, to transfer
pictures from a digital camera to a computer.
↘ Conserves battery power of digital camera.
↘ No need to install special software.
↘ Digital camera does not have to be near or connected to the computer
____________________________________________________
Disadvantages of an interactive whiteboard @IMPAQ JUN 2019
• Venue must be appropriate.
• Expensive.
• Organizer may not be comfortable with technology.
____________________________________________________
BIOMETRIC @IMPAQ JUN 2021 & @IMPAQ JUN 2019
The general name of the type of identification offered by the fingerprint reader.
Why this type of security is better than using passwords: cannot be hacked is
incorrect but more secure with explanation taken as correct because unique to
a specific person.
@ Juffrou_Ansie
