3. Algorithms are used in the design of computer programs - Edexcel - GCSE Computer Science - Question 3 - 2021 - Paper 1
Question 3
3. Algorithms are used in the design of computer programs.
(a) Describe what is meant by the term 'algorithm':
A sequence of instructions (1) that solves a problem... show full transcript
Worked Solution & Example Answer:3. Algorithms are used in the design of computer programs - Edexcel - GCSE Computer Science - Question 3 - 2021 - Paper 1
Step 1
Describe what is meant by the term 'algorithm':
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Answer
An algorithm is defined as a sequence of instructions that is explicitly designed to solve a specific problem. It consists of clear and concise steps that can be followed to achieve a desired outcome.
Step 2
Draw a straight line to match each use to the correct term.
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Answer
Use
Term
Making decisions
Selection
Removing unnecessary detail
Abstraction
Repeating code
Iteration
Step 3
Explain why it is important for computing technology to be inclusive.
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Answer
Inclusion in computing technology is crucial because it reduces the divide and disadvantage in society. By ensuring that more people have access to technology, we can foster greater participation and innovation, ultimately benefiting everyone.
Step 4
Explain one positive impact of computing technology on the environment.
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Answer
One positive impact of computing technology on the environment is that it facilitates the development of smart energy solutions. For instance, by using IoT devices, we can optimize energy consumption in homes and businesses, which helps in reducing carbon footprints.
Step 5
Describe one freedom that open source software provides to developers.
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Answer
One freedom that open source software provides to developers is the ability to modify the source code. This enables developers to tailor the software to their specific needs or to enhance its features, fostering innovation and collaboration.
Step 6
Describe how abstraction could be applied to playing cards when creating a card game to run on a computer.
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Answer
Abstraction in the context of a card game means focusing on the essential features of playing cards while ignoring the unnecessary details. For example, we could represent a card simply as an object with properties like 'suit' and 'rank'. This allows developers to create functionality around cards, such as shuffling or dealing, without needing to deal with the visual elements initially.