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The friends are considering the use of a notebook computer to run their business - NSC Information Technology - Question 2 - 2016 - Paper 2
Question 2
The friends are considering the use of a notebook computer to run their business. 2.1.1 The notebook that is being considered contains a 2.16 GHz processor with 2 M... show full transcript
Worked Solution & Example Answer:The friends are considering the use of a notebook computer to run their business - NSC Information Technology - Question 2 - 2016 - Paper 2
Step 1
2.1.1 (a) Briefly explain why the use of cache memory inside a processor enhances the performance of the system.
Answer
Cache memory is a small amount of high-speed memory located inside the processor that stores frequently accessed data and instructions. This helps to reduce the time the CPU needs to fetch data from the slower main memory (RAM). By saving time in fetching instructions and data, cache memory enhances overall system performance and improves the efficiency of processing tasks.
Step 2
2.1.1 (b) Why would it not be possible to upgrade the 2 MB cache memory in the CPU of the notebook?
Answer
The 2 MB cache memory in the CPU is typically built into the processor chip and is not designed to be removable or upgradeable. Unlike RAM, which can be physically changed, cache memory is manufactured as part of the CPU architecture; thus, upgrading it would require replacing the entire CPU.
Step 3
2.1.1 (c) Give TWO reasons why a notebook with an SSD would be a better option than one that contains a conventional HDD.
Answer
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Speed: SSDs (Solid State Drives) offer significantly faster read and write speeds compared to conventional HDDs (Hard Disk Drives). This results in shorter boot times, quicker file transfers, and improved overall system responsiveness.
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Durability: SSDs have no moving parts, making them more resistant to physical shocks and damage. This enhances their reliability and lifespan compared to HDDs, which can be vulnerable to mechanical failure.
Step 4
2.1.2 (a) Name TWO other primary functions of an operating system.
Answer
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Process Management: The operating system manages the execution of processes, ensuring that multiple applications can run simultaneously without interference.
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Memory Management: The operating system handles the allocation and deallocation of memory space as needed by applications, optimizing the use of RAM.
Step 5
2.1.2 (b) (i) Briefly state what area of application Android was primarily designed for.
Answer
Android is primarily designed for mobile devices, including smartphones and tablets. It provides a platform for developers to create applications tailored for touch interfaces and portable computing.
Step 6
2.1.2 (b) (ii) Briefly state what area of application Unix was primarily designed for.
Answer
Unix was primarily designed for multi-user environments, typically utilized on servers and workstations. It supports multitasking and is widely used in networked systems for its stability and robustness.
Step 7
2.1.2 (c) Explain how web caching is applied to enhance the process of browsing the Internet.
Answer
Web caching enhances the browsing experience by storing copies of frequently accessed web pages in a cache. When a user visits a site, the browser can retrieve the page from the cache instead of making a request to the remote server. This saves bandwidth and decreases loading times, resulting in faster access to content and a smoother Internet experience overall.