The Effects of Using IT: Smart Devices, Autonomous Vehicles and Health Risks

This guide covers Topic 5, The effects of using IT, of Cambridge IGCSE Information and Communication Technology 0417. It follows 4.2, Network issues and communication and shifts from technical infrastructure to the broader social and physical impact of IT use – a topic examined through discussion and evaluation of trade-offs rather than pure factual recall.

5.1 Microprocessor-controlled devices in the home

You need to know the positive and negative effects of microprocessors and smart devices in monitoring and controlling devices in the home, across five named dimensions: impact on lifestyle, leisure time, physical fitness, security of data, and the degree of social interaction. A smart heating or lighting system, for example, can positively affect lifestyle by automating routine tasks and saving time, but may negatively affect physical fitness if it removes small amounts of everyday physical activity, and raises data security concerns since a networked smart device is a potential target for unauthorised access. Answering a question on this subtopic well means naming a specific dimension (not just “it’s good” or “it’s bad”) and explaining the mechanism behind the effect.

5.1 Microprocessor-controlled devices in transport

You need to know the positive and negative effects of microprocessors and smart devices in monitoring and controlling transport, covering security of data, autonomous vehicles, and transport safety specifically. Autonomous (self-driving) vehicles are a particularly rich example: potential positive effects include reduced human error in driving and the ability for a passenger to use travel time productively, while potential negative effects include job displacement for professional drivers, new safety questions around a system’s decision-making in unusual situations, and the data-security risk of a vehicle’s control systems being accessed without authorisation.

5.2 Potential health problems from prolonged IT use

You need to know a named set of health issues linked to prolonged use of IT equipment – repetitive strain injury (RSI), back problems, eye problems, and headaches – along with the causes of each and strategies for preventing them.

Health issue	Typical cause	Prevention strategy
RSI	Repeated small movements, e.g. typing or mouse use	Take regular breaks; use an ergonomic keyboard/mouse
Back problems	Poor posture, unsuitable chair or desk height	Use an adjustable chair; keep screen at eye level
Eye problems	Prolonged screen focus, poor lighting, glare	Follow a break routine (e.g. look away periodically); use anti-glare screens; ensure good lighting
Headaches	Eye strain, screen glare, poor posture, dehydration	Take breaks; adjust screen brightness/contrast; stay hydrated

Exam answers on this subtopic are expected to link a named health issue to its specific cause and a specific, practical prevention strategy, rather than a single generic answer such as “take breaks” applied identically to every health issue – each issue has causes and countermeasures worth stating distinctly.

A worked example: smart home heating

A smart thermostat that learns a household’s routine and adjusts heating automatically illustrates several of the named dimensions at once. Lifestyle: reduces the need to manually adjust heating, freeing time for other activities. Leisure time: by reducing a routine chore, it may modestly increase time available for leisure. Physical fitness: largely neutral for this specific device, though the broader trend of automating small household tasks is sometimes raised as a factor in reduced everyday physical activity. Security of data: the thermostat is network-connected and typically linked to an account, so it represents a potential target if that account or the home network is not properly secured. Social interaction: largely unaffected directly, though smart-home ecosystems in general are sometimes discussed as reducing face-to-face household coordination (such as discussing who last adjusted the heating) since the system now manages it automatically. Working through a single device across all five named dimensions like this, rather than jumping between unrelated examples, is good practice for the “discuss the effects of” style of question this subtopic favours.

How to approach it

For 5.1, practise structuring an answer around the specific named dimension a question asks about (lifestyle, leisure time, physical fitness, data security, or social interaction for the home; data security, autonomous vehicles, or transport safety for transport) rather than giving a general, undirected opinion about smart technology – Cambridge’s mark schemes reward answers that engage with the named factor directly. For 5.2, learn the four health issues together with their specific cause and prevention pairing (as in the table above) rather than a single blended list of “IT health tips”, since exam questions frequently ask about one named issue at a time and expect an answer specific to that issue’s actual physical cause. When discussing advantages and disadvantages in either subtopic, aim to state both sides explicitly and reach a brief, reasoned judgement where the question asks for one, since Cambridge’s “discuss” and “evaluate” command words in this topic specifically look for balanced consideration rather than a one-sided answer.

Why this topic sits where it does

Topic 5 acts as a bridge between the technical topics before it (Topics 1-4, covering hardware, devices, storage and networks) and the applied real-world systems that follow in Topic 6, ICT applications. Where Topics 1-4 ask “how does this technology work”, Topic 5 asks “what happens to people and society when this technology is used” – a shift in the type of thinking the topic expects, from factual recall toward reasoned discussion of trade-offs, which is worth recognising explicitly when revising so you approach 5.1 and 5.2 questions with the right kind of answer structure rather than trying to recall a single “correct” fact.

Official syllabus

Cambridge International, Cambridge IGCSE Information and Communication Technology (0417) syllabus for 2026, 2027 and 2028: official syllabus PDF, Subject content, section 5 “The effects of using IT” (5.1-5.2). Verified 2026-09-02.