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
Batteries run flat - Wireless keyboards typically rely on batteries, which can run out during use.
Latency during gaming - Wireless keyboards may introduce a slight delay, making them less responsive than their wired counterparts.
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 Elements - Mobile apps are designed for touchscreens and have fewer visual elements compared to desktop versions, which can lead to improved simplicity and usability on smaller screens.
Lack of Scroll Bars - Mobile applications often utilize swiping gestures instead of scroll bars found in desktop versions.
Step 3
What kind of desktop computer is a result of convergence?
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An All-in-one computer is often the result of convergence, integrating the monitor and CPU into a single unit, thus saving space and enhancing portability.
Step 4
Suggest TWO ways to fix a mouse pointer that moves in an unpredictable way, without replacing the mouse.
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Clean/clear any residue on the optical sensor - Dust or debris can interfere with the sensor's functionality.
Adjust the mouse pointer settings/speed/sensitivity in the control panel, as improper settings can cause erratic movement.
Step 5
Give TWO reasons why many modern notebooks no longer include an optical drive.
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Reduction in size - By removing the optical drive, manufacturers can make notebooks lighter and more compact.
Most data/software is available to download - Increasing internet bandwidth and cloud storage options have made physical media less necessary.
Step 6
State TWO uses of NFC on smartphones.
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Transfer of files/data between devices - NFC enables quick pairing and data exchange between compatible devices.
Can be used for payments - NFC technology allows users to make mobile payments easily and securely.
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/register the software to continue using the full features of the software.
Step 8
State ONE advantage of using the PDF file format.
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One significant advantage of the PDF format is that it maintains layout and security, ensuring the document appears the same on all devices and restricting editing and printing as per requirements.
Step 9
How would you convert an office suite document to PDF?
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You can convert an office suite document to PDF by using the 'Export' or 'Save as PDF' functionality available in most office software.
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 be due to varying content types, such as one document being primarily text while the other contains images. Additionally, if OCR data is not available or if one document is a scanned image, it would not support text search features.
Step 11
Explain TWO ways to find a program on your computer, OTHER than using the Start Menu.
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Use a file management app like Windows Explorer to browse through your files and applications directly.
Use the Run Command feature to access programs by typing their executable names.
Step 12
Explain how a POS device finds the price of a product after it is scanned.
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A POS device retrieves the product price by scanning a barcode, which links to a database containing the item's details, including the price.
Step 13
Name TWO features to look for in laptop computer hardware that will make upgrades easier in future.
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Extra RAM slots - This allows for easy upgrades to memory later on.
Replaceable hard drive - It enables users to swap out the existing hard drive for a larger capacity or faster SSD.
Step 14
Name TWO pieces of equipment one would need for VR.
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Headgear/Helmet with screen - This device immerses the user into the VR environment.
Controllers - These allow user interaction within the virtual space.
Step 15
State ONE way in which VR can be used.
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One way in which VR can be used is in education, allowing students to engage in immersive learning experiences and virtual simulations.
