Digital devices

Worked examples (9)

• 1Classify each device into a category
• 2Identify the feature being described
• 3Classify each scenario by the most suitable digital device
• 4Calculate storage capacity needed
• 5Calculate device battery life under typical use
• 6Compare processor speeds and operations per second
• 7Recommend a digital device for a small business
• 8Compare a desktop computer with a tablet
• 9Explain the impact of embedded systems on everyday life

Worked examples (9)

• 1Classify each as system or application software
• 2Name the OS function being described
• 3Match each task to the application type
• 4Calculate the cost of software licensing
• 5Calculate disk space used by OS and applications
• 6Cost comparison: cloud-based vs installed software
• 7Explain three functions of an operating system
• 8Compare open-source and proprietary software
• 9Recommend a software stack for a small business

Worked examples (9)

• 1Identify the device feature being described
• 2State the correct unit for each device feature
• 3Match each feature to the user it most benefits
• 4Calculate whether a 64 GB device can store a workload
• 5Calculate the number of pixels on a display
• 6Calculate how long a download will take
• 7Recommend the better device from specifications
• 8Explain trade-offs between competing features
• 9Analyse how features have changed in digital devices over the last decade

Worked examples (9)

• 1Classify each device as input, output, or both
• 2Name the most suitable input device
• 3Recommend the printer type for each scenario
• 4Calculate printing volume needs
• 5Calculate cost per page
• 6Calculate projector image area
• 7Recommend input devices for a graphic designer
• 8Compare inkjet vs laser printers
• 9Explain the use of sensors as input devices

Worked examples (9)

• 1Classify each storage device by technology
• 2Identify the property being described
• 3Recommend storage for each scenario
• 4Calculate how many files fit on a device
• 5Calculate backup time over a network
• 6Calculate cost-per-GB of storage options
• 7Compare HDDs and SSDs
• 8Compare cloud storage with local storage
• 9Recommend a backup strategy

Worked examples (9)

• 1Classify each as RAM, ROM, or other
• 2Identify the memory property
• 3Identify the symptom of low RAM
• 4Calculate the RAM needed for several programs
• 5Calculate the slowdown from virtual memory
• 6Calculate how many browser tabs fit in RAM
• 7Compare RAM with ROM
• 8Explain the role of cache memory
• 9Explain virtual memory and its trade-offs

Worked examples (9)

• 1Identify the CPU component
• 2Match each architecture to its typical use
• 3Identify the cache level
• 4Calculate theoretical operations per second
• 5Compare two CPUs by theoretical throughput
• 6Calculate the addressable RAM of a 32-bit vs 64-bit CPU
• 7Explain the trade-off between clock speed and cores
• 8Compare ARM and x86 processors
• 9Recommend a CPU for video editing

Worked examples (9)

• 1Identify user requirements from a scenario
• 2Match each business to a suitable type of ICT setup
• 3Classify each as benefit, cost or constraint
• 4Calculate total cost of ownership (TCO)
• 5Calculate payback period for an ICT investment
• 6Calculate productivity gain from ICT
• 7Design an ICT system for a primary school
• 8Explain how to future-proof an ICT system
• 9Evaluate the move from local to cloud computing