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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 that provides quicker access to frequently used data and instructions. It acts as a buffer between the RAM and the CPU, reducing the time required to fetch data. This speeds up the overall processing as the CPU can retrieve data more efficiently without the delay of accessing the slower RAM.
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 cache memory is typically integrated into the CPU design and is not removable. Thus, upgrading the cache memory would require physically modifying the CPU itself, which is not feasible in standard notebook configurations.
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
- Speed: SSDs offer significantly faster data access speeds compared to conventional HDDs, which results in quicker boot times and faster application loading.
- Reliability and Durability: SSDs have no moving parts, making them less prone to mechanical failure and damage from physical shocks, while HDDs have moving components that can fail.
Step 4
2.1.2 (a) Name TWO other primary functions of an operating system.
Answer
- Managing Hardware Resources: The operating system controls and coordinates the use of hardware components like CPU, memory, and storage.
- User Interface: It provides a user interface, allowing users to interact with the computer system effectively.
Step 5
2.1.2 (b) Briefly state what area of application each of the following operating systems were primarily designed for: (i) Android (ii) Unix
Answer
(i) Android: Primarily designed for mobile devices, providing a platform for smartphones and tablets. (ii) Unix: Primarily designed for networked servers and desktop environments, with a focus on multitasking and multiuser capabilities.
Step 6
2.1.2 (c) Explain how web caching is applied to enhance the process of browsing the Internet.
Answer
Web caching stores copies of frequently accessed web pages locally on the hard drive. When a user revisits a page, the browser retrieves it from the cache rather than downloading it again from the internet. This reduces loading time and minimizes bandwidth usage, thereby enhancing the browsing experience.