4.1 Give ONE example of a device that can be classified as an input device and output device - NSC Computer Application Technology - Question 4 - 2023 - Paper 2

1. Sending and receiving information between different devices, such as transferring files or downloading multimedia content.
2. Sharing information through various channels, including instant messaging and video conferencing.

Data refers to raw facts and figures that have not yet been processed to provide meaning. For example, a list of numbers or words represents data, which can be used for various analyses.

1. Analyze the data: This process involves examining the raw data to extract meaningful insights.
2. Interpret the data: After analysis, the data must be interpreted to provide context and relevance, turning it into usable information.

1. A drastic decrease in performance or unexpected slowdowns can indicate malware infection, as malicious software often utilizes system resources.
2. Pop-ups or error messages, such as a ransomware notification or unusual browser behavior, can also signify an infection.

1. Documents sent to the printer can be paused, allowing the user to manage the queue effectively.
2. They can also be placed in a queue, which ensures that jobs are printed in the order they were received without any conflicts.

1. It can increase the wear and tear on the hard drive, potentially leading to premature failure due to constant movement of the disk arm.
2. It may be a time-consuming process that disrupts the overall performance of the computer while running.

The purpose of a user interface (UI) is to facilitate interaction between users and computer systems, making it easier for users to operate software and hardware. An example of an input device commonly used with a UI is a keyboard.

You would typically change the resolution in the display settings of your operating system, accessible through the Control Panel on Windows or System Preferences on macOS.

1. Functionality may be limited if multiple devices share a single device; for example, a smartphone may not excel in all functions that dedicated devices perform.
2. Increased complexity can lead to security and privacy risks, as more functions and information are being managed by one device.

1. Companies can avoid the need for powerful computing devices by distributing complex processing tasks across multiple systems.
2. Increased computing power is achieved as tasks are performed in parallel, improving performance and resource utilization.

1. Firewalls cannot protect against social engineering attacks, which may bypass technical defenses by manipulating users.
2. They may not prevent misuse of passwords or unauthorized access to the internal network.

1. Upgrading to a Solid State Drive (SSD) can significantly improve read/write speeds compared to traditional hard drives.
2. Implementing data compression techniques can help reduce the size of files and improve storage efficiency.