Features of Digital Devices

Whenever an exam question asks you to compare two digital devices (say, a smartphone vs a desktop), examiners expect you to talk about the same checklist of features every time. Think of it like comparing two cars — you wouldn't just say "this one's nicer," you'd compare fuel economy, boot space, engine size, safety features, and so on. Digital devices have their own version of that checklist.

Here's an analogy that makes it click: imagine each device as a person you're hiring for a job. You'd want to know — can they travel easily (portability)? How fast do they work (performance)? How much can they remember (storage)? How do you give them instructions (user interface)? Can they talk to other people/systems (connectivity)? What skills do they have (media support)? How much do they "cost" to run (energy consumption)? Can they learn new skills later (expansion capability)? And can you trust them with sensitive information (security features)?