2.1 State TWO main functions of a motherboard - NSC Information Technology - Question 2 - 2019 - Paper 2
Question 2
2.1 State TWO main functions of a motherboard.
2.2 What is the main difference between a bus and a point-to-point connection?
2.3 Expansion slots are used to add c... show full transcript
Worked Solution & Example Answer:2.1 State TWO main functions of a motherboard - NSC Information Technology - Question 2 - 2019 - Paper 2
Step 1
State TWO main functions of a motherboard.
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Answer
The two main functions of a motherboard are: 1. It provides connectors to allow other circuits (like CPU and RAM) to connect to and house components. 2. It ensures that all components of the computer can communicate with one another.
Step 2
What is the main difference between a bus and a point-to-point connection?
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The main difference is that a bus implies a shared communication pathway among components, whereas a point-to-point connection is dedicated, meaning it provides a direct connection between two components.
Step 3
State ONE type of controller card that can be connected through an expansion slot.
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One type of controller card that can be connected is a video card.
Step 4
Name ONE port that is commonly used to connect a wide variety of devices to a computer system.
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One commonly used port is the USB port.
Step 5
Where will the changes made to the configuration settings of the BIOS be saved?
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The changes made to the configuration settings of the BIOS will be saved in CMOS memory.
Step 6
Why don't the changes made to the configuration settings get lost when the computer is switched off and unplugged?
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The changes don't get lost because the battery on the motherboard keeps the CMOS from losing its data.
Step 7
Identify the processing techniques illustrated and numbered as QUESTIONS 2.5.1, 2.5.2 and 2.5.3 in the diagram below.
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Cache memory uses a limited amount of faster memory to speed up access to data and instructions stored on a slower medium. It temporarily stores frequently accessed data and instructions.
Step 9
Define hardware interrupt.
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A hardware interrupt is a means or method by which a device can indicate that it needs attention from the CPU.
Step 10
Use an example to explain why plug-in software is sometimes required by your browser to access certain websites.
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For example, a website containing specific types of multimedia may require a browser plug-in, such as Flash, to properly view or play the multimedia content.
Step 11
Write out the acronym POS.
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POS stands for Point of Sale.
Step 12
State TWO benefits of using barcodes with barcode scanners in a POS system.
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The benefits include: 1. Faster and more efficient for capturing prices, and 2. More accurate, preventing errors in the capture of prices.
Step 13
Define the term scalability in a cloud-based computing environment.
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Scalability refers to the ability to increase and decrease resources, both size and power, quickly and efficiently based on changing demands.
Step 14
Give TWO reasons why the software needs to be updated regularly.
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To fix bugs in programs, and 2. To fix security loopholes.
Step 15
State TWO advantages of software updates that are managed by a service provider for a company that uses cloud-based computing services.
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The advantages include: 1. The company does not have to check for and install updates automatically, and 2. Updates are managed by the service provider.
