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Overview
Hardware Considerations
Hardware considerations are key to designing and using Human Computer Interfaces (HCIs) effectively. Choosing the right hardware affects how well a system works, its speed, and the overall user experience.
Displays come in different types (such as LCD, LED, OLED) and sizes, which can influence visibility, portability, and energy use. Resources like memory and processing power determine how quickly and efficiently a system can run applications, handle multiple tasks, and store data. Understanding these factors helps ensure the HCI meets user needs and works smoothly in its intended environment.
The right combination of display and resources improves usability, reduces lag, and supports accessibility.
Poor choices can cause slow performance, eye strain, or compatibility issues.
In exams, you need to know the purposes, advantages, and disadvantages of different hardware choices, as well as how they affect the HCI’s performance, reliability, and suitability for a given application.
What You Need to Learn
What You Need to Learn
Hardware Considerations
Hardware Considerations
🖥️ Display
🖥️ Display
Type – LCD, LED, OLED; affects image quality, energy use, and cost.
Size – Larger screens improve visibility; smaller screens increase portability.
💾 Resources
💾 Resources
Memory (RAM) – More RAM allows smoother multitasking and faster performance.
Processing Power – Faster processors handle complex tasks more efficiently.
⚡ Impact on HCI
⚡ Impact on HCI
Affects speed, usability, and visual clarity.
Influences battery life in portable devices.
✅ Advantages
✅ Advantages
Better performance and smoother interaction.
⚠️ Disadvantages
⚠️ Disadvantages
Higher cost for advanced hardware.
Larger displays and powerful processors may increase energy use and heat output.
♿ Accessibility & Context
♿ Accessibility & Context
Where? Classroom/desk vs on-the-go; portability vs screen size.
Who? Accessibility needs: large text/high contrast.
What? Tasks: basic vs demanding (games, video, data analysis).
Cyber-attack caused UK car production to hit 70-year low for September
A major cyber-attack on Jaguar Land Rover (JLR) forced its UK factories to shut down for five weeks, causing national car production to drop by 27% in September — the lowest September total since 1952. The attack halted JLR’s global operations, affecting sites in Solihull, Wolverhampton and Halewood, and led to an estimated £1.9 billion in economic damage, making it the most costly cyber incident in UK history. Around 5,000 businesses were also impacted, with full recovery not expected until January 2026. The Society of Motor Manufacturers and Traders (SMMT) confirmed that JLR’s shutdown was the main cause of the slump, as other manufacturers reported steady output. Overall, exports also fell sharply, hitting the UK’s largest automotive employer hard.
Discussion point:
Should companies like JLR face stricter legal requirements for protecting their IT systems from cyber-attacks, given the widespread economic and social consequences?
https://www.bbc.co.uk/news/articles/cvgmp1prnv0o
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