Unit 3: 3 Content
Topic 3.3: Computers Questions
Practice 20 exam-style questions for IB Digital Society Topic 3.3. Review the question stems below, then unlock the full Question Bank to access markschemes, model answers, and AI grading.
1Explain4 marks
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A school runs its 3D printers with open-source control software. Explain **two** advantages of using open-source software for the printers.
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A farming co-operative controls its irrigation pumps with open-source software. Explain **two** advantages of using open-source software for the pumps.
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Explain **one** advantage of developing software as **open source**.
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With reference to Source A, identify **one** way the unit confirms who is standing in front of it.
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A modern hearing aid can stream phone calls and be adjusted through an app. Suggest **one** reason why the hearing aid needs to be connected to a smartphone.
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A smart ring measures sleep and heart rate and must be paired with a smartphone. Suggest **one** reason why the ring needs to be connected to a smartphone.
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A child's smartwatch sends its location to a parent and must be set up with the parent's smartphone. Suggest **one** reason why the watch needs to be connected to a smartphone.
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A charity checks that refurbished laptops work before donating them to a village library. Explain **one** other action the library needs to take to ensure the laptops will be usable.
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A supplier tests refurbished tablets before sending them to a rural clinic. Explain **one** other action the clinic needs to take to ensure the tablets will be usable.
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A recycling firm repairs donated smartphones before a school gives them to pupils without devices. Explain **one** other action the school needs to take to ensure the phones will be usable.
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Identify **two** output devices a service robot would carry.
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A city's bike-share app gives directions while people cycle. Describe **one** feature of the app's interface that makes it usable while cycling.
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Describe **one** way an application's interface can exclude some of the people it is meant to serve.
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Identify the **four** main functional components of a computer.
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Identify **two** types of computer.
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Explain **one** reason why where processing happens matters to a user.
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Outline what is meant by **computer coding**.
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Explain **one** reason why understanding code matters even for people who will never write it.
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Explain **one** reason why most computers people rely on are ones they never see.
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With reference to Source B, suggest **two** things a user should be told about a service they rely on.
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