HSC 12th Board Exam Solutions: Information Technology - Moto G5 Plus Case Study

HSC 12th Board Exam Paper Solutions

Subject Code: IT-2025 Topic: Mobile Computing Technology Case Study

Below are the comprehensive solutions and detailed notes regarding the specific case study question on the Moto G5 Plus.

Question 1 Write a short note on the Moto G5 Plus and its significance in the mid-range smartphone market.

The Moto G5 Plus represents a significant iteration in the Moto G series, known for bringing premium features to the budget-friendly segment. It is widely recognized for its metal unibody design, which was a departure from the plastic construction of its predecessors. The device aims to balance performance and battery efficiency, making it a staple example in mobile hardware studies.

Question 2 Detail the Hardware Specifications and Performance Architecture.

The performance of the device is driven by the following hardware components:

• Processor: Qualcomm Snapdragon 625 octa-core processor clocked at 2.0 GHz. This chipset is renowned for its thermal efficiency.
• RAM: Available in 2GB, 3GB, and 4GB variants, allowing for versatile multitasking capabilities.
• Storage: Internal storage options of 32GB or 64GB, expandable via a dedicated microSD card slot.
• Battery: A 3000 mAh non-removable Li-Ion battery supporting TurboPower charging.

Question 3 Explain the Camera Optics and Aperture Technology used in the device.

The Moto G5 Plus features a 12-megapixel rear camera that utilizes "Dual Pixel" autofocus technology. A key highlight is its wide aperture, which allows more light to enter the sensor, improving low-light photography.

The relationship between the focal length and the diameter of the entrance pupil is defined by the f-number equation:

$$ N = \frac{f}{D} $$

Where:

• \( N \) is the f-number (Aperture).
• \( f \) is the focal length.
• \( D \) is the diameter of the entrance pupil.

The Moto G5 Plus boasts an impressive aperture of f/1.7, which is mathematically significant as it allows approximately \( \sqrt{2} \) times more light compared to a standard f/2.2 aperture often found in this segment.

Question 4 Describe the Display Matrix and Build Quality.

Display: The device sports a 5.2-inch IPS LCD panel with a Full HD resolution (1920 x 1080 pixels). The pixel density can be calculated as approximately 424 PPI (Pixels Per Inch).

Build: The shift to a high-grade aluminum finish gives the device a premium feel. It also includes a water-repellent nano-coating, protecting the internal circuits from moderate exposure to water.