4.1 Name TWO input devices that can be found on a laptop computer, other than a touch screen - NSC Computer Application Technology - Question 4 - 2019 - Paper 2
Question 4
4.1 Name TWO input devices that can be found on a laptop computer, other than a touch screen.
4.2 The user cannot see the full text while an e-mail is being typed o... show full transcript
Worked Solution & Example Answer:4.1 Name TWO input devices that can be found on a laptop computer, other than a touch screen - NSC Computer Application Technology - Question 4 - 2019 - Paper 2
Step 1
Name TWO input devices that can be found on a laptop computer, other than a touch screen.
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Answer
Keyboard/ Keypad
Touchpad/ Trackpad
Step 2
Give TWO reasons why this happens.
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Answer
An on-screen keyboard might block the view of the text being typed.
The font size may be too large, causing some text to be out of view.
Step 3
Give TWO functions of a UPS.
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Provides temporary backup power during outages to allow for safe saving of work.
Protects computer systems from power surges and fluctuations.
Step 4
Discuss TWO reasons why a presenter would use a data projector instead of a monitor while presenting.
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Answer
A data projector can display larger visuals for a bigger audience.
It allows for presentations on various surfaces, providing flexibility in presentation style.
Step 5
State TWO advantages of HDMI cables over VGA cables for connecting a television to a computer.
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HDMI cables transmit both audio and video signals together, reducing cable clutter.
They offer better audio/video quality with higher resolutions.
Step 6
Give TWO reasons why 3D printers are not commonly used in a home office, other than the cost.
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3D printers may require significant setup and maintenance, making them less convenient.
They can take a long time to print items, which may not suit a fast-paced work environment.
Step 7
Explain why it is INCORRECT to say that 1024x768 is the size of the monitor.
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1024x768 refers to the resolution of the display and not the physical dimensions of the monitor. Monitor sizes are expressed in inches diagonally across the screen.
Step 8
Give the term used to describe the reason why this office suite will not run on an earlier version of the operating system specified above.
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Compatibility
Step 9
Give TWO reasons why you would choose to buy an office suite instead of purchasing various applications by different software developers, other than the cost.
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Office suites often provide a unified user interface, making them easier to navigate and use.
They typically include all necessary applications in one installation, simplifying updates and maintenance.
Step 10
Give TWO possible causes why an application stops responding.
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Lack of system resources, such as insufficient RAM.
Software errors or bugs within the application itself may lead to unresponsive behavior.
Step 11
Give TWO reasons why the saved picture now displays blurred or is unclear.
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The picture size may have been increased, resulting in pixelation.
It may have been saved in a different file format that affects quality.
Step 12
Explain how convergence contributes to green computing.
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Convergence reduces the number of devices needed, which means fewer resources are consumed in the manufacturing process. Fewer devices also lead to reduced electronic waste and lower energy consumption.
Step 13
Write down the general term for the process where broadcasting services are changed from analogue to digital technology.
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Digital migration
Step 14
State TWO advantages of digital broadcasting technology for the viewers.
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Digital broadcasting offers higher resolution and improved picture quality.
It provides features like streaming video on demand and electronic programming guides.
