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
Wireless keyboards tend to have a limited range, which can be problematic if the user moves too far from the receiver.
They can be prone to interference, crosstalk, or latency issues, particularly during gaming, which affects their responsiveness.
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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Answer
Mobile apps have screen elements that are visibly less informative given the smaller size of the screen, often requiring a more minimalist design.
The mobile GUI commonly uses touch interface designs, which differ significantly from mouse-driven desktop interfaces.
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, integrating components such as the monitor and CPU into a single unit.
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 the mouse drivers to ensure appropriate functionality.
Clean or clear any residue on the optical sensor, as dirt can impede accurate tracking.
Step 5
Give TWO reasons why many modern notebooks no longer include an optical drive.
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Most software and data are available for download, reducing the need for physical media.
Manufacturers aim to create lighter and thinner devices, where optical drives contribute to increased weight and size.
Step 6
State TWO uses of NFC on smartphones.
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NFC can be used for wirelessly transferring files or data quickly between devices.
It facilitates mobile payment options through secure transactions.
Step 7
What should a user do when the trial period of a software product has expired?
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The user should purchase a license or register the software to continue using its features.
Step 8
State ONE advantage of using the PDF file format.
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One advantage is that PDFs maintain document formatting across different devices and systems, ensuring consistency.
Step 9
How would you convert an office suite document to PDF?
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You can export or save the document as a PDF via the software's export function or choose 'Print to PDF' if available.
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 may stem from variations in DPI settings or content types, such as images versus text. One document may lack OCR data or contain scanned images, making text searches unfeasible.
Step 11
Explain TWO ways to find a program on your computer, OTHER THAN using the Start Menu.
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You can use a file manager application to browse through programs or search for a specific program directly.
Another option is to utilize the Run Command feature by pressing Windows + R and entering the program's name.
Step 12
Explain how a POS device finds the price of a product after it is scanned.
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A POS (Point of Sale) device accesses its database to retrieve product information, including pricing, as each product carries a unique barcode.
Step 13
Name TWO features to look for in laptop computer hardware that will make upgrades easier in the future.
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Having extra RAM slots available allows for easy memory upgrades.
A removable battery feature enables easy replacement or upgrading of power sources.
Step 14
Name TWO pieces of equipment one would need for VR.
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A VR headset, which provides the display and immersive experience.
VR controllers, allowing users to interact with the virtual environment.
Step 15
State ONE way in which VR can be used.
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VR can be used in education to create immersive learning experiences, allowing students to interact with complex subjects in an engaging manner.
