4.1 State TWO disadvantages of wireless keyboards - NSC Computer Application Technology - Question 4 - 2017 - Paper 2
Question 4
4.1 State TWO disadvantages of wireless keyboards.
4.2 State TWO ways in which the GUI of a mobile app differs from the desktop version of the same app.
4.3 What k... show full transcript
Worked Solution & Example Answer:4.1 State TWO disadvantages of wireless keyboards - NSC Computer Application Technology - Question 4 - 2017 - Paper 2
Step 1
State TWO disadvantages of wireless keyboards.
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Answer
Limited range: Wireless keyboards may only work within a certain range from the connected device, limiting movement.
Prone to interference/crosstalk: Wireless signals can be interrupted by other devices, leading to connectivity issues.
Step 2
State TWO ways in which the GUI of a mobile app differs from the desktop version of the same app.
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Smaller screen size: Mobile GUIs are designed for smaller screens, often resulting in a simplified layout and larger touch targets.
Touch interface: Mobile apps rely on touch gestures, whereas desktop apps are typically navigated using a mouse and keyboard.
Step 3
What kind of desktop computer is a result of convergence?
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An All-in-one computer is a result of convergence. It integrates the CPU and monitor into a single unit, combining functionalities of various devices into one.
Step 4
Suggest TWO ways to fix a mouse pointer that moves in an unpredictable way, without replacing the mouse.
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Reinstall drivers: Check and reinstall mouse drivers to ensure proper functionality.
Clean/Clear any residue on optical sensor: Remove any dirt or blockage from the optical sensor to improve tracking.
Step 5
Give TWO reasons why many modern notebooks no longer include an optical drive.
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Reduction in size: Removing the optical drive allows for a slimmer and lighter design, which is preferred for portability.
Most data/software is available to download: Users can download software and media instead of relying on CDs or DVDs.
Step 6
State TWO uses of NFC on smartphones.
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Transfer of files/data between devices: NFC can be used to quickly share files between smartphones.
Can be used for payments: NFC technology enables contactless payments through applications like mobile wallets.
Step 7
What should a user do when the trial period of a software product has expired?
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The user should either purchase a licence or register the software for continued use.
Step 8
State ONE advantage of using the PDF file format.
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PDFs can maintain the layout and formatting of documents across different devices and software platforms.
Step 9
How would you convert an office suite document to PDF?
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You can export the document directly to PDF using the 'Save As' or 'Export' function in the office suite application.
Step 10
Explain why they have different file sizes AND why it is not possible to do a text search in one of them.
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The different file sizes could be due to varying content types or resolutions. Additionally, one document may be scanned from an image, making it unsearchable as it lacks OCR data.
Step 11
Explain TWO ways to find a program on your computer, OTHER than using the Start Menu.
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Use search function and files tool: Utilizing the search bar available in the file manager can locate programs easily.
Check programs pinned to the taskbar: If a program is frequently used, it may be pinned to the taskbar for quick access.
Step 12
Explain how a POS device finds the price of a product after it is scanned.
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The POS device scans the product's barcode, retrieves the associated information from an internal database, and displays the price on the screen.
Step 13
Name TWO features to look for in laptop computer hardware that will make upgrades easier in the future.
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Extra RAM slots available: This allows for the addition of more memory later on.
Replaceable graphics card/adaptor: Ensures that the graphics capabilities can be upgraded without replacing the entire laptop.
Step 14
Name TWO pieces of equipment one would need for VR.
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Head gear/Helmet with screen: Necessary for immersive visual experiences.
Motion controllers: Used to interact within the virtual environment.
Step 15
State ONE way in which VR can be used.
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VR can be employed in education, allowing immersive learning through simulated environments.
